Serbian police officers of the Special Anti-Terrorist Unit pose for a picture in their base outside Belgrade October 8, 2014. When the killing of an unarmed black teenager by a white policeman in Ferguson, Missouri, in August sparked sometimes violent protests, the response of police in camouflage gear and armoured vehicles wielding stun grenades and assault rifles seemed more like a combat operation than a public order measure. Some U.S. police departments have recently acquired U.S. military-surplus hardware from wars abroad, but there are many law enforcers around the world whose rules of engagement also allow the use of lethal force with relatively few restrictions. But for every regulation that gives police wide scope to use firearms, there is another code that sharply limits their use. In Serbia, police may use measures ranging from batons to special vehicles, water cannon and tear gas on groups of people who have gathered illegally and are behaving in a way that is violent or could cause violence, but they may use firearms only when life is endangered. (Photo by Marko Djurica/Reuters)

Italian Prime Minister Giorgia Meloni (L) is welcomed by the European Parliament President Roberta Metsola ahead of a meeting at the European Parliament in Brussels, Belgium, 03 November 2022. (Photo by Stephanie Lecocq/EPA/EFE/Rex Features/Shutterstock)

Abby Dow (L) of England scores a try during the Women's Rugby World Cup Semi Final match between Canada and England at Eden Park in Auckland, New Zealand, 05 November 2022. (Photo by Aaron Gillions/EPA/EFE)

Croatia's Josko Gvardiol reacts after Argentina's Julian Alvarez scored his side's second goal during the World Cup semifinal soccer match between Argentina and Croatia at the Lusail Stadium in Lusail, Qatar, Tuesday, December 13, 2022. (Photo by Martin Meissner/AP Photo)

Daring motorists entertain spectators by dangerously driving cars and motorcycles on a vertical “wall of death” in Manikgonj, Bangladesh on January 17, 2023. Performers travel without any protective gear at speeds of up to 80 km/h so that their vehicles can balance on the 25 feet high wooden plank. (Photo by Syed Mahabubul Kader/ZUMA Press Wire/Rex Features/Shutterstock)

Revelers look at a cellphone during the annual street block party know as “Explode Coracao” on the third day of Carnival on February 19, 2023 in Sao Paulo, Brazil. According to the São Paulo City Council, during Carnival week more than 500 street blocks (blocos de rua) are held and more than 15 million people are expected to participate in them. Created in 2017, Explode Coracao is one of the most popular street blocks and attracted 150,000 revelers in its last edition, before the pandemic, in 2020. (Photo by Alexandre Schneider/Getty Images)

Stanford golfer Rose Shang smiles towards her teammates after winning the NCAA college women's golf championship at Grayhawk Golf Club, Monday, May 22, 2023, in Scottsdale, Ariz. (Photo by Matt York/AP Photo)

The body of an unidentified man lies on a road barrier near a village recently retaken by Ukrainian forces on the outskirts of Kharkiv, Ukraine, Saturday, April 30, 2022. Ukraine's second-largest city, has been under sustained Russian attack since the beginning of the war in late February. (Photo by Felipe Dana/AP Photo)