Former trader Jerome Kerviel (R) and his lawyer David Koubbi leave the Fleury-Merogis prison near Paris September 8, 2014. The French trader Jerome Kerviel, who was sentenced in May to three years in jail over trading that lost his bank billions of euros, won a court battle that will allow him to leave prison today as long as he respects home curfew rules. Kerviel, convicted after losing Societe Generale 4.9 billion euros ($6.4 billion) in 2008 with a pileup of trades that went wrong, walked free on September 8, and will wear an electronic bracelet that will allow him to go to work during the day but will alert authorities if he tries to leave home between 8.30 p.m. and 7 a.m. REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW TPX IMAGES OF THE DAY) 

Jerome Kerviel, former trader of French bank Societe Generale, walks while carrying his backpack in Modena, northern Italy March 19, 2014. France's highest court of appeal upheld Kerviel's criminal conviction and three-year jail sentence over massive market bets that brought the French bank to the brink of collapse in 2008. However, the court overturned a civil ruling that demanded Kerviel pay a fine of 4.9 billion euros ($6.8 billion) that matched the bank's losses when it unwound the trader's mammoth positions in the midst of the financial crisis. A new civil trial will take place before the Versailles Appeals Court to decide on eventual damages. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW TPX IMAGES OF THE DAY) 

Jerome Kerviel, former trader of French bank Societe Generale, walks while carrying his backpack in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, is filmed by a cameraman as he continues on his walk from Rome to Paris, in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, continues on his walk from Rome to Paris, in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, is filmed by a camerawoman he continues on his walk from Rome to Paris, in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, is filmed by a cameraman he continues on his walk from Rome to Paris, in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, leaves a hotel in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, leaves a hotel in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, leaves a hotel in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, smokes a cigarette as he stands outside a hotel in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, smokes a cigarette as he stands outside a hotel in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Jerome Kerviel, former trader of French bank Societe Generale, looks on as he stands outside a hotel in Modena, northern Italy March 19, 2014. France's highest court of appeal is set on Wednesday to deliver what may be the final word on the fate of Kerviel, who has spent more than three years fighting a jail sentence over massive market bets that almost brought the bank to the brink of collapse in 2008. Kerviel, 37, turned to the Court of Cassation in 2012 after losing his initial appeal against a three-year jail sentence and a fine of 4.9 billion euros ($6.8 billion), designed to compensate SocGen for its losses when it unwound the trader's mammoth positions in the midst of the financial crisis. REUTERS/Alessandro Bianchi (ITALY - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel leaves the office of his lawyer David Koubbi hours after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible. REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW HEADSHOT) 

Former Societe Generale trader Jerome Kerviel leaves the office of his lawyer David Koubbi hours after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible. REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (R) and his lawyer David Koubbi depart in a taxi inn Paris as they leave his lawyer's office hours after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi (R) walk in the street in Paris as they leave his lawyer's office hours after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (R) and his lawyer David Koubbi (L) leave his lawyer's office hours after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi (R) walk in the street in Paris as they leave his lawyer's office after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW MEDIA) 

Former Societe Generale trader Jerome Kerviel (2ndR) and his lawyer David Koubbi (R) walk in the street in Paris as they leave his lawyer's office after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW MEDIA) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi (R) walk in the street in Paris as they leave his lawyer's office after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW MEDIA) 

Former Societe Generale trader Jerome Kerviel walks in the street in Paris as he leaves his lawyer David Koubbi's office after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi (R) walk in the street in Paris as they leave his lawyer's office after the verdict in his appeals trial October 24, 2012. Former Societe Generale trader Jerome Kerviel lost his appeal on Wednesday against a three-year prison sentence for his role in France's biggest rogue-trading scandal. A Paris appeals court ruled that the 35-year-old ex-trader, who had fought to overturn a 2010 conviction for taking huge, risky bets that cost SocGen 4.9 billion euros ($6.35 billion), was responsible REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (C) arrive with his lawyers David Koubbi (R) and Benoit Pruvost (L) at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (2ndR) and his lawyers David Koubbi (R) and Benoit Pruvost (2ndLarrive at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Charles Platiau (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel arrives at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (C) and his lawyer David Koubbi (R) arrive at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel arrives at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi (R) arrive at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi (R) arrive at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi (R) arrive at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (C) arrive with his lawyers David Koubbi (R) and Benoit Pruvost (L) at the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCEBUSINESS LAW - Tags: BUSINESS CRIME LAW TPX IMAGES OF THE DAY) 

Former Societe Generale trader Jerome Kerviel (C) enters a car as he leaves the office of his lawyer David Koubbi on their way to the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi leave Koubbi's office on their way to the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) and his lawyer David Koubbi leave Koubbi's office on their way to the Paris court for the verdict in his appeal trial October 24, 2012. Kerviel, the man behind France's biggest rogue-trading scandal, finds out today whether he is heading to prison or walking free after his last court appeal in a four-year battle against former employer Societe Generale. Former trader Kerviel submitted a final attempt in June to be acquitted and avoid a three-year jail sentence handed down in 2010 for his role in taking huge, risky bets that cost SocGen 4.9 billion euros ($6.4 billion) to unwind and slammed the French bank's reputation. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Raphael Geys, a former managing director of Societe Generale's fixed income sales in London, leaves the Supreme Court in central London October 17, 2012. A senior banker, who says he was fired for being too successful, is taking his 12.5 million euro-plus ($16 million) lawsuit against France's Societe Generale to the UK's highest court in a case that could re-draft employment law. Geys, a Belgian national and a former managing director of SocGen's European fixed income sales in London, is suing for breach of contract after France's second-largest bank summarily fired him in 2007 without paying his full severance package. REUTERS/Andrew Winning (BRITAIN - Tags: BUSINESS EMPLOYMENT CRIME LAW) 

Raphael Geys, a former managing director of Societe Generale's fixed income sales in London, leaves the Supreme Court in central London October 17, 2012. A senior banker, who says he was fired for being too successful, is taking his 12.5 million euro-plus ($16 million) lawsuit against France's Societe Generale to the UK's highest court in a case that could re-draft employment law. Geys, a Belgian national and a former managing director of SocGen's European fixed income sales in London, is suing for breach of contract after France's second-largest bank summarily fired him in 2007 without paying his full severance package. REUTERS/Andrew Winning (BRITAIN - Tags: BUSINESS EMPLOYMENT CRIME LAW) 

Raphael Geys, a former managing director of Societe Generale's fixed income sales in London, leaves the Supreme Court in central London October 17, 2012. A senior banker, who says he was fired for being too successful, is taking his 12.5 million euro-plus ($16 million) lawsuit against France's Societe Generale to the UK's highest court in a case that could re-draft employment law. Geys, a Belgian national and a former managing director of SocGen's European fixed income sales in London, is suing for breach of contract after France's second-largest bank summarily fired him in 2007 without paying his full severance package. REUTERS/Andrew Winning (BRITAIN - Tags: BUSINESS EMPLOYMENT CRIME LAW) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

BNP Paribas Chief Executive Jean-Laurent Bonnafe attends a news conference to present its second-quarter earnings in Paris August 2, 2012. BNP Paribas, one of the euro zone's biggest banks, reported a better-than-expected 13.2 percent fall in second-quarter earnings. BNP, which has more than half of its credit-risk exposure in the euro zone, is ahead in the race with local rival SocGen, revealing on Thursday it had hit a Tier 1 capital ratio of 8.9 percent under tougher Basel III rules at end-June - six months ahead of schedule. It said its deleveraging was 90 percent done. REUTERS/Julien Muguet (FRANCE - Tags: BUSINESS) 

French lawyer Jean Veil (R), who represents French bank Societe Generale, talks with lawyer David Koubbi, who represents former Societe Generale trader Jerome Kerviel, during a break on the last day of kerviel's appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

French lawyer Jean Veil (R), who represents French bank Societe Generale, talks with lawyer David Koubbi, who represents former Societe Generale trader Jerome Kerviel, during a break on the last day of kerviel's appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

French lawyer Jean Veil (R), who represents French bank Societe Generale, talks with lawyer David Koubbi, who represents former Societe Generale trader Jerome Kerviel, during a break on the last day of kerviel's appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

French lawyer Jean Veil (R), who represents French bank Societe Generale, talks with lawyer David Koubbi, who represents former Societe Generale trader Jerome Kerviel, during a break on the last day of kerviel's appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel is seen during a break on the last day of his appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW HEADSHOT) 

Former Societe Generale trader Jerome Kerviel smokes a cigarette during a break on the last day of his appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel is seen during a break on the last day of his appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW HEADSHOT) 

French novelist Tristane Banon is seen during the last day of the appeal trial of former Societe Generale trader Kerviel at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW ENTERTAINMENT) 

Former Societe Generale trader Jerome Kerviel (L) walks with his lawyer David Koubbi (R) during a break on the last day of his appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (L) walks with his lawyer David Koubbi (R) during a break on the last day of his appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel (C) walks with his lawyers Lawyer David Koubbi (R) and Benoit Pruvost during a break on the last day of his appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW) 

Former Societe Generale trader Jerome Kerviel walks during a break on the last day of his appeal trial at Paris court June 28, 2012. Kerviel should serve five years in prison for his role in France's biggest-ever rogue trading scandal, a state prosecutor told a Paris court on Wednesday. Kerviel is appealing a three-year jail sentence handed down in 2010, as well as an order to repay SocGen 4.9 billion euros ($6.1 billion) lost by the French bank when it closed the trader's massive risky bets in 2008. REUTERS/Gonzalo Fuentes (FRANCE - Tags: BUSINESS CRIME LAW)