Lawyer Eric Dupond-Moretti, walks ahead of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, during the appeal trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

General view of the courtroom in the appeals trial of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Dossiers in the appeals trial of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, are displayed ahead of his tax fraud case appeal inside the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Lawyer Eric Dupond-Moretti, walks ahead of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, during the appeals trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Lawyer Eric Dupond-Moretti, walks with former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, as they leave during the appeals trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac (C), who was sentenced to three years in jail for hiding an offshore bank account, stands between lawyers Eric Dupond-Moretti (L), and Antoine Vey during their appeals trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac (C), who was sentenced to three years in jail for hiding an offshore bank account, stands between lawyers Eric Dupond-Moretti (L), Antoine Vey (2ndR), and Jean-Alain Michel (R) during their appeals trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Lawyer Eric Dupond-Moretti, walks ahead of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, during the appeal trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Lawyer Eric Dupond-Moretti, walks ahead of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, during the appeal trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Gendarmes secure the area as former French budget minister Jerome Cahuzac (C), who was sentenced to three years in jail for hiding an offshore bank account, leaves with lawyers during the appeals trial in his tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Lawyer Eric Dupond-Moretti, walks with former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, during the appeals trial in Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac (C), who was sentenced to three years in jail for hiding an offshore bank account, stands between lawyers Eric Dupond-Moretti (L) and Jean-Alain Michel during their appeals trial in Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac (C), who was sentenced to three years in jail for hiding an offshore bank account, walks between lawyers Eric Dupond-Moretti (L) and Jean-Alain Michel during their appeals trial in Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac (C), who was sentenced to three years in jail for hiding an offshore bank account, walks between lawyers Eric Dupond-Moretti (L) and Jean-Alain Michel during their appeal in Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Lawyer Eric Dupond-Moretti, walks ahead of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, during their appeal in Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Eric Dupond-Moretti, one of the lawyers for former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, walks past gendarmes during Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Dossiers in the appeals trial of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, are displayed ahead of his tax fraud case inside the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Eric Dupond-Moretti, one of the lawyers for former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives ahead of Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Eric Dupond-Moretti, one of the lawyers for former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives ahead of Cahuzac's tax fraud case at the courts in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Dossiers in the appeals trial of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, are displayed ahead of his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives with one of his lawyers, Jean-Alain Michel, for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives with one of his lawyers, Jean-Alain Michel, for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Dossiers in the appeals trial of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, are displayed ahead of his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Dossiers in the appeals trial of former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, are displayed ahead of his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

Former French budget minister Jerome Cahuzac, who was sentenced to three years in jail for hiding an offshore bank account, arrives for the appeals trial in his tax fraud case at the courtroom in Paris, France, February 12, 2018. REUTERS/Gonzalo Fuentes

The super yacht Indian Empress, owned by fugitive Indian businessman Vijay Mallya, is seen berthed beneath Fort St Angelo in Valletta's Grand Harbour, Malta, December 9, 2016. Fugitive Indian businessman Vijay Mallya said on Friday that his Twitter account had been penetrated by a hacking group called Legion, which posted links to what it alleged were details of Mallya's bank accounts, offshore investments and luxury cars. REUTERS/Darrin Zammit Lupi

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, walks behind a gendarme as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac (C), who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac (R), who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, arrives to attend the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer

Former French budget minister Jerome Cahuzac, who resigned in 2013 after he admitted to having a Swiss bank account, is surrounded by French gendarmes as he leaves after the verdict in his tax fraud trial at the courtroom in Paris, France, December 8, 2016. Cahuzac was sentenced to three years in jail on Thursday for hiding an offshore bank account of his own. REUTERS/Philippe Wojazer TPX IMAGES OF THE DAY

Philippe Brassac, Credit Agricole bank Chief Executive Officer arrives at a Senate hearing set up for the CEO to answer questions prompted by the Panama Papers revelations on the world of offshore finance, in Paris, France, May 25, 2016. REUTERS/Pascal Rossignol

Philippe Brassac, Credit Agricole bank Chief Executive Officer arrives at a Senate hearing set up for the CEO to answer questions prompted by the Panama Papers revelations on the world of offshore finance, in Paris, France, May 25, 2016. REUTERS/Pascal Rossignol

Philippe Brassac, Credit Agricole bank Chief Executive Officer arrives at a Senate hearing set up for the CEO to answer questions prompted by the Panama Papers revelations on the world of offshore finance, in Paris, France, May 25, 2016. REUTERS/Pascal Rossignol

Societe Generale Chief Executive Frederic Oudea (L) and Jean-Francois Mazaud (R) Head of Societe Generale Private Banking, arrive at a Senate hearing set up for the CEO to answer questions prompted by the Panama Papers revelations on the world of offshore finance, in Paris, France, May 11, 2016. REUTERS/Charles Platiau

The Credit Suisse logo is seen at the headquarters in downtown Milan, Italy, March 9, 2016. Credit Suisse Group is under investigation in Italy in connection with a case looking into allegations that the bank helped wealthy clients transfer undeclared funds offshore, Italian judicial sources said on Wednesday. REUTERS/Stefano Rellandini

The Credit Suisse logo is seen at the headquarters in downtown Milan, Italy, March 9, 2016. Credit Suisse Group is under investigation in Italy in connection with a case looking into allegations that the bank helped wealthy clients transfer undeclared funds offshore, Italian judicial sources said on Wednesday. REUTERS/Stefano Rellandini

The Credit Suisse logo is seen at the headquarters in downtown Milan, Italy, March 9, 2016. Credit Suisse Group is under investigation in Italy in connection with a case looking into allegations that the bank helped wealthy clients transfer undeclared funds offshore, Italian judicial sources said on Wednesday. REUTERS/Stefano Rellandini TPX IMAGES OF THE DAY TPX IMAGES OF THE DAY

A general view of a section of the capital Nairobi November 13, 2015. Kenya's central bank sold foreign exchange early on Friday, dealers said, helping shore up the shilling after yields on the 91-day Treasury bill fell below 10 percent at auction, making the paper less attractive to offshore investors. REUTERS/Noor Khamis

Power-generating windmill turbines are pictured at the 'Amrum Bank West' offshore windpark in the northern sea near the island of Amrum, Germany September 4, 2015. REUTERS/Morris Mac Matzen

Power-generating windmill turbines are pictured at the 'Amrum Bank West' offshore windpark in the northern sea near the island of Amrum, Germany September 4, 2015. REUTERS/Morris Mac Matzen