Iraqi defendant Ahmad Abdulaziz Abdullah Abdullah, known as Abu Walaa, accused of being "IS' representative in Germany" greets his lawyer Thomas Koll through a glas pane as he arrives in a courtroom in Celle, Germany, February 24, 2021. Julian Stratenschulte/Pool via REUTERS

Iraqi defendant Ahmad Abdulaziz Abdullah Abdullah, known as Abu Walaa, accused of being "IS' representative in Germany" knocks on a glas pane as he arrives in a courtroom in Celle, Germany, February 24, 2021. Julian Stratenschulte/Pool via REUTERS

German rock band "Milliarden" (Billions) gives a concert in a van for a single fan separated by a plexiglass pane in Berlin, Germany, February 16, 2021. REUTERS/Hannibal Hanschke

German rock band "Milliarden" (Billions) gives a concert in a van for a single fan separated by a plexiglass pane in Berlin, Germany, February 16, 2021. REUTERS/Hannibal Hanschke TPX IMAGES OF THE DAY

German rock band "Milliarden" (Billions) gives a concert in a van for a single fan separated by a plexiglass pane in Berlin, Germany, February 16, 2021. REUTERS/Hannibal Hanschke

Workers carry a pane of glass at the construction site of the Chongli Taizi Town Project near skiing venues of the 2022 Winter Olympics in the Chongli district of Zhangjiakou, Hebei province, China, October 29, 2020. REUTERS/Thomas Peter

A worker cleans a glass pane of a balcony railing in a hotel at Playa De Palma beach ahead of Spain's official reopening of the borders June 21 following the coronavirus disease (COVID-19) outbreak, in Palma de Mallorca, Spain June 16, 2020. REUTERS/Enrique Calvo

A worker cleans a glass pane of a balcony railing in a hotel at Playa De Palma beach, as Spain prepares to officially reopen its borders, in Palma de Mallorca, Spain June 14, 2020. REUTERS/Enrique Calvo

A cleaning worker wearing a protective cleans a glass pane in a hotel at Playa De Palma beach, as Spain prepares to officially reopen its borders, in Palma de Mallorca, Spain June 14, 2020. REUTERS/Enrique Calvo

A shattered glass pane is seen during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Lucas Jackson

A protester hits a glass pane during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Lucas Jackson

A protester breaks a glass pane during a demonstration against the death in Minneapolis police custody of African-American man George Floyd, in Minneapolis, Minnesota, U.S., May 29, 2020. REUTERS/Lucas Jackson

A message is displayed in various window panes for medical personnel across from the University of Maryland Medical Center, as the coronavirus disease (COVID-19) outbreak continues, in Baltimore, Maryland, U.S., April 28, 2020. REUTERS/Tom Brenner

A protester smashes a glass pane during a march to mark the fifth year since the disappearance of the 43 students of the Ayotzinapa Teacher Training College in the state of Guerrero, in Mexico City, Mexico September 26, 2019. REUTERS/Henry Romero

A protester smashes a glass pane during a march to mark the fifth year since the disappearance of the 43 students of the Ayotzinapa Teacher Training College in the state of Guerrero, in Mexico City, Mexico September 26, 2019. REUTERS/Henry Romero

A person kicks a glass pane during a march to mark the fifth year since the disappearance of the 43 students of the Ayotzinapa Teacher Training College in the state of Guerrero, in Mexico City, Mexico September 26, 2019. REUTERS/Henry Romero

Anti-extradition bill protesters are seen reflected on window panes at the terminals at Hong Kong International Airport, in Hong Kong, China, September 1, 2019. REUTERS/Anushree Fadnavis

A young girl looks through a glass pane at the swimming seals, as a heatwave is expected to reach the city, at the Berlin Zoo, Germany June 25, 2019. REUTERS/Annegret Hilse

A vendor with a pane of vegetable rolls and samosas, a traditional snack, walks past the sacks of grain and lentils at wholesale market in Karachi, Pakistan April 2, 2019. REUTERS/Akhtar Soomro

A youth breaks a window pane during a demonstration of the "yellow vests" movement in Nantes, France, February 16, 2019. REUTERS/Stephane Mahe

An aircraft is mirrored in a window facade in Frankfurt, Germany, August 8, 2018. REUTERS/Ralph Orlowski

A burned car is seen next to Casa Velha village, near Monchique, Portugal August 8, 2018. REUTERS/Pedro Nunes

A mannequin is seen inside clothing shop after earthquake hit on Sunday in Senggigi, Lombok Island, Indonesia August 6, 2018. Picture taken August 6, 2018. REUTERS/Beawiharta

Workers replace glass panes on the clock face of Queen Elizabeth tower, commonly known as Big Ben on the Houses of Parliament, in central London, Britain July 11, 2018. REUTERS/Simon Dawson

Workers replace glass panes on the clock face of Queen Elizabeth tower, commonly known as Big Ben on the Houses of Parliament, in central London, Britain July 11, 2018. REUTERS/Simon Dawson

A firefighter breaks through a pane of glass to reach two window washers whose platform became stuck at the Bay Adelaide Centre's newly-completed East Tower in the business district of Toronto, Ontario, Canada March 16, 2017. REUTERS/Chris Helgren

Firefighters break through a pane of glass to reach two window washers whose platform became stuck at the Bay Adelaide Centre's newly-completed East Tower in the business district of Toronto, Ontario, Canada March 16, 2017. REUTERS/Chris Helgren

An emblem of the Chinese communist party atop the National Museum is reflected in the glass pane of a door at the Great Hall of the People ahead of the opening session of the Chinese People's Political Consultative Conference (CPPCC) in Beijing, China March 2, 2017. REUTERS/Thomas Peter

French President Francois Hollande (R) looks through the pane of a display case as he visits the Freemasonry museum (Musee de la Franc-maçonnerie) in Paris, France, February 27, 2017. REUTERS/Christophe Archambault/Pool

French President Francois Hollande (R) looks through the pane of a display case as he visits the Freemasonry museum (Musee de la Franc-maçonnerie) in Paris, France, February 27, 2017. REUTERS/Christophe Archambault/Pool

A woman waits during preparations for the International Central Gospel Church annual end-of-year event, as a screen is reflected on a pane of glass, at Accra Sports Stadium in Accra, Ghana December 31, 2016. The event is called "Cross-Over" and attracts believers from all denominations to pray for grace in the coming year. This event has grown to become one of the biggest Christian gatherings in Ghana. REUTERS/Francis Kokoroko SEARCH "FAITH KOKOROKO" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.?

People visit the Sainte-Chapelle (Holy Chapel) in Paris, France, September 13, 2016. Stained glass panes depict 1,113 scenes from the Old and New Testaments recounting the history of the world until the arrival of the relics, including Christ's crown of thorns, acquired by Saint Louis. REUTERS/Charles Platiau

Inside view of the Sainte-Chapelle (Holy Chapel) in Paris in Paris, France, September 13, 2016. Stained glass panes depict 1,113 scenes from the Old and New Testaments recounting the history of the world until the arrival of the relics, including Christ's crown of thorns, acquired by Saint Louis. REUTERS/Charles Platiau

Inside view of the Sainte-Chapelle (Holy Chapel) in Paris in Paris, France, September 13, 2016. Stained glass panes depict 1,113 scenes from the Old and New Testaments recounting the history of the world until the arrival of the relics, including Christ's crown of thorns, acquired by Saint Louis. REUTERS/Charles Platiau

Residential blocks are reflected on the glass panes of a business tower in Hong Kong November 3, 2010. REUTERS/Bobby Yip/File Photo

Raindrops run down a window pane as a businessman walks past the Bank of Japan headquarters in Tokyo, Japan, April 28, 2016. REUTERS/Thomas Peter/File Photo

Raindrops run down a window pane as a businessman walks past the Bank of Japan headquarters in Tokyo, Japan, April 28, 2016. REUTERS/Thomas Peter/File Photo

Supporters are reflected in a glass pane as they wait for Democratic U.S. presidential candidate Hillary Clinton to speak during her California primary night rally held in the Brooklyn borough of New York, U.S., June 7, 2016. REUTERS/Lucas Jackson

Raindrops run down a window pane as a businessman walks past the Bank of Japan headquarters in Tokyo, Japan, April 28, 2016. REUTERS/Thomas Peter

Republican U.S. presidential candidate Senator Ted Cruz speaks as he is reflected in a pane of glass as part of the city of Philadelphia is seen in the background during a Pennsylvania campaign kickoff event at the National Constitution Center in Philadelphia, Pennsylvania, U.S., April 19, 2016. REUTERS/Charles Mostoller (TPX IMAGES OF THE DAY)

The logo of German Peter Pane fast food restaurant chain's branch is pictured at Berlin's Friedrichstrasse boulevard, Germany, March 17, 2016. REUTERS/Fabrizio Bensch

People sit outside a German Peter Pane fast food restaurant chain's branch at Berlin's Friedrichstrasse boulevard in Berlin, Germany, March 17, 2016. REUTERS/Fabrizio Bensch

A worker walks on panes of the retractable windows on the roof of the Oculus structure of the World Trade Center Transportation Hub during a media tour of the site in the Manhattan borough of New York City, March 1, 2016. REUTERS/Mike Segar

An "office" sign is seen through a broken pane of glass at the now-closed sock knitter Cobble Company in Fort Payne, Alabama October 22, 2015. Many manufacturers have closed in Fort Payne, which was once known as the "Sock Capital of the World." Fields along the Mississippi River Delta once gleamed white in the autumn with acre upon acre of cotton ready to be picked. This year U.S. farmers planted the fewest acres of cotton since 1983, according to U.S. Department of Agriculture data. REUTERS/Brian Snyder PICTURE 26 OF 28 FOR WIDER IMAGE STORY "THE LEGACY OF 'KING COTTON' IN THE AMERICAN SOUTH" SEARCH "KING COTTON" FOR ALL IMAGES

Shi'ite Muslims are seen through the window pane of a parked car as they gather to receive free drinking water during a Muharram procession to mark Ashura in Delhi, India, October 24, 2015. Ashura, which falls on the 10th day of the Islamic month of Muharram, commemorates the death of Imam Hussein, grandson of Prophet Mohammad, who was killed in the seventh century battle of Kerbala. REUTERS/Anindito Mukherjee

People walk along a street in the shopping district of Ginza in central Tokyo May 18, 2015. Picture taken through a double-paned window. REUTERS/Thomas Peter

Workers attach metal cables to the track of an excavator at a construction site in central Tokyo May 18, 2015. Japan's core machinery orders grew in March for the first time in two months but they are seen sliding in the current quarter, suggesting that weak capital spending could further sap momentum from an economy struggling to rebound from a recession. Picture taken through a double-paned window. REUTERS/Thomas Peter

A reflection of a worker using a welding unit is seen through a double-paned window at a construction site in central Tokyo May 18, 2015. Japan's core machinery orders grew
in March for the first time in two months but they are seen sliding in the current quarter, suggesting that weak capital spending could further sap momentum from an economy struggling to rebound from a recession. REUTERS/Thomas Peter

A worker balances on a metal beam at a construction site in central Tokyo May 18, 2015. Japan's core machinery orders grew in March for the first time in two months but they are seen sliding in the current quarter, suggesting that weak capital spending could further sap momentum from an economy struggling to rebound from a recession. Picture taken through a double-paned window. REUTERS/Thomas Peter

Workers guide a metal plate as it is carried by a crane at a construction site in central Tokyo May 18, 2015. Japan's core machinery orders grew in March for the first time in two months but they are seen sliding in the current quarter, suggesting that weak capital spending could further sap momentum from an economy struggling to rebound from a recession. Picture taken through a double-paned window. REUTERS/Thomas Peter

A worker uses a welding unit at a construction site in central Tokyo May 18, 2015. Japan's core machinery orders grew in March for the first time in two months but they are seen sliding in the current quarter, suggesting that weak capital spending could further sap momentum from an economy struggling to rebound from a recession. Picture taken through a double-paned window. REUTERS/Thomas Peter

Workers guide a crane operator as he moves the tracks of an excavator at a construction site in central Tokyo May 18, 2015. Japan's core machinery orders grew in March for the first time in two months but they are seen sliding in the current quarter, suggesting that weak capital spending could further sap momentum from an economy struggling to rebound from a recession. Picture taken through a double-paned window. REUTERS/Thomas Peter

A girl with a bowl runs over a bridge after a rain on the outskirts of Peshawar January 22, 2015. REUTERS/Fayaz Aziz (PAKISTAN - Tags: SOCIETY ENVIRONMENT)

John Adams uses a board to clean broken glass out of window panes at his friends vandalized business following a second night of protests in Ferguson, Missouri November 26, 2014. Aiming to head off new looting and rioting, Missouri's governor on Tuesday ordered National Guard reinforcements into the St. Louissuburb of Ferguson following overnight violence ignited by the clearing of a white police officer in the fatal shooting of an unarmed black teenager. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW)

John Adams uses a board to clean broken glass out of window panes at his friends vandalized business following a second night of protests in Ferguson, Missouri November 26, 2014. Aiming to head off new looting and rioting, Missouri's governor on Tuesday ordered National Guard reinforcements into the St. Louissuburb of Ferguson following overnight violence ignited by the clearing of a white police officer in the fatal shooting of an unarmed black teenager. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW)

Women who underwent sterilisation surgery at a government mass sterilisation camp, queue with their children to receive food inside a hospital at Bilaspur district in the eastern Indian state of Chhattisgarh November 15, 2014. Tablets linked to the deaths of more than a dozen women who visited a sterilisation camp in India are likely to have contained a chemical compound commonly used in rat poison, two senior officials in Chhattisgarh state said on Saturday. The picture was taken through a glass pane. REUTERS/Anindito Mukherjee (INDIA - Tags: HEALTH CRIME LAW SOCIETY)

A man uses a pane as he fills a sack of wheat husk from his makeshift stall along a road in Nowshera, Khyber Pakhtunkhwa province November 11, 2014. Wheat husk is commonly used to feed cattle. REUTERS/Fayaz Aziz (PAKISTAN - Tags: SOCIETY AGRICULTURE)