Riot police officers in position to crack down on demonstrators during a protest against Venezuelan President Nicolas Maduro, in Caracas on April 20, 2017. Venezuelan riot police fired tear gas Thursday at groups of protesters seeking to oust President Nicolas Maduro, who have vowed new mass marches after a day of deadly unrest. Police in western Caracas broke up scores of opposition protesters trying to join a larger march, though there was no immediate repeat of Wednesday's violent clashes, which left three people dead. (Photo by Juan Barreto/AFP Photo)

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)

Supporters of US President Donald J. Trump gather for a rally in Freedom Plaza to protest Congress's upcoming certification of Joe Biden as the next president in Washington, DC, USA, 05 January 2021. Various groups of Trump supporters announced rallies on 06 January 2021 as Congress meets to certify the results of the 2020 US Presidential election. (Photo by Shawn Thew/EPA/EFE)

A nude protester faces off against Federal law enforcement officers, deployed under the Trump administration's new executive order to protect federal monuments and buildings, during a protest against racial inequality in Portland, Oregon, U.S. July 18, 2020. (Photo by Nathan Howard/Reuters)

An Oakland Raiders cheerleader performs during the second half of an NFL football game against the Pittsburgh Steelers in Oakland, Calif., Sunday, October 27, 2013. (Photo by Marcio Jose Sanchez/AP Photo)

Bahamas' Shaunae Miller-Uibo celebrates winning the women's 200 meters final at the Diamond League Birmingham Grand Prix in Birmingham, Britain on August 18, 2019. (Photo by Jason Cairnduff/Action Images via Reuters)

Piccacho, Pokemon passes the Hero toys and is guided into the goods lift in London, United Kingdom on January 24, 2023. (Photo by Guy Bell/Alamy Live News)

Fireworks explode in the hands of a protester launching it at the Lebanese Central Bank building as frustrated depositors rally against Central Bank's Gov. Riad Salameh, who is facing corruption charges, and the deepening financial crisis in Beirut, Lebanon, Friday, March 24, 2023. (Photo by Hassan Ammar/AP Photo)