An undercover police officer, who had been marching with anti-police demonstrators, aims his gun at protesters after some in the crowd attacked him and his partner in Oakland, California December 10, 2014. Police said more than 100 demonstrators marched in Berkeley, California, which has a history of social activism. Under cloudy skies, turnout was smaller than earlier in the week, when demonstrators in the area threw rocks at police and shut down a major freeway. (Photo by Noah Berger/Reuters)

A woman holding a girl walks as police officers block the street during a rally called by the opposition leader Raila Odinga who claims the last Kenyan presidential election was stolen from him and blames the government for the hike of living costs in Kibera, Nairobi on March 27, 2023. Police fired tear gas to disperse anti-government protests on March 27, 2023 over the high cost of living, after the opposition vowed demonstrations would go ahead despite a police ban. (Photo by Yasuyoshi Chiba/AFP Photo)

St Louis County police officers arrest an anti-police demonstrator in Ferguson, Missouri August 10, 2015. Dozens of protesters were arrested on Monday afternoon after blocking rush-hour traffic on Interstate 70 a few miles (km) from Ferguson, Missouri, during demonstrations over the police shooting of an unarmed black man a year ago, according to a Reuters witness. (Photo by Lucas Jackson/Reuters)

Afghans shout anti-U.S. slogans as they burn tires and block a highway during a protest in reaction to a small American church's plan to burn copies of the Quran, at Jalalabad, east of Kabul, Afghanistan, Friday, September 10, 2010. Religious and political leaders across the Muslim world welcomed a decision by the church to suspend its plans to torch copies of their holy book but some said Friday the damage has already been done. (Photo by Rahmat Gul/AP Photo)

Police officers react as they attempt to detain a protestor near the entrance to Downing Street, during an anti-racism demonstration in London, on June 3, 2020, after George Floyd, an unarmed black man died after a police officer knelt on his neck during an arrest in Minneapolis, USA. Londoners defied coronavirus restrictions and rallied on Wednesday in solidarity with protests raging across the United States over the death of George Floyd, an unarmed black man who died during an arrest on May 25. (Photo by Daniel Leal-Olivas/AFP Photo)

Members of the English Defence League (EDL) take part in a demonstration through the streets of Leicester on February 4, 2012 in Leicester, England. Up to two thousand members of the EDL gathered in the centre of Leicester as an opposing demonstration by anti-fascists held their protest nearby. (Photo by Christopher Furlong/Getty Images)

In this October 6, 1976, file photo, a right-wing student, center foreground, draws his arm back to strike a captured and wounded leftist student being taken by police to an ambulance in during a student massacre in Bangkok, Thailand. This year’s anti-government protests are seeking new elections, a more democratic constitution and an end to intimidation of political activists. Their speeches have repeatedly highlighted the 1976 tragedy, piquing the interest of the current generation in what their forebears faced. (Photo by Neal Ulevich/AP Photo/File)

An opposition activist clashes with the police during a march against Venezuelan President Nicolas Maduro held on May Day, in Caracas on May 1, 2017. Security forces in riot vans blocked off central Caracas Monday as Venezuela braced for pro- and anti- government May Day protests one month after a wave of deadly political unrest erupted. (Photo by Federico Parra/AFP Photo)