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)

Members of the new BFEplus anti-terror unit of the German federal police holds a G36C automatic weapon after taking part in a capabilities demonstration at a police training facility on December 16, 2015 in Ahrensfelde, Germany. The BFEplus, whose acronym stands for Beweissicherungs und Festnahme Einheit, or Evidence Safeguarding and Arrest Unit, is to support the GSG9 police special forces unit in containing domestic terror threats. Germany is on high-alert following the November Paris terror attacks and a credible threat at the Germany vs. Holland football match in Hanover. (Photo by Sean Gallup/Getty Images)

“Tony Lepore (born October 17, 1947), aka the Dancing Cop, is a retired American police officer who has been entertaining on the streets of Providence, Rhode Island during the December holiday season by directing traffic using a dancing style since 1984”. – Wikipedia

Photo: Retired police officer Tony Lepore performs his dance routine while directing traffic December 14, 2004 in downtown Providence, Rhode Island. Lepore has been entertaining drivers and directing traffic at intersections around Providence for 20 years. He came upon the idea after seeing a “Candid Camera” clip of New York City police officers who flamboyantly directed traffic in the 1950's. (Photo by Darren McCollester/Getty Images)

Police officers control the crowd (rear) while surrounding a man (front C) suspected to be involved in opening fire on a beachside hotel in Sousse, Tunisia, as a woman reacts (R), June 26, 2015. At least 27 people, including foreign tourists, were killed when at least one gunman opened fire on a Tunisian beachside hotel in the popular resort of Sousse on Friday, an interior ministry spokesman said. Police were still clearing the area around the Imperial Marhaba hotel and the body of one gunman lay at the scene with a Kalashnikov assault rifle after he was shot in an exchange of gunfire, a security source at the scene said. (Photo by Amine Ben Aziza/Reuters)

A woman throws an object at police vehicle during clashes as people gather at the Bois de la Cambre/Ter Kamerenbos park for a party called “La Boum 2” in defiance of Belgium's coronavirus disease (COVID-19) social distancing measures and restrictions, in Brussels, Belgium on May 1, 2021. (Photo by Yves Herman/Reuters)

Police detain demonstrators during an action against Russia's attack on Ukraine in St. Petersburg, Russia, Monday, February 28, 2022. Protests against the Russian invasion of Ukraine resumed on Monday, with people taking to the streets of Moscow and St. Petersburg and other Russian towns despite mass arrests. (Photo by Dmitri Lovetsky/AP Photo)

A Secret Service police officer wrestles a protester to the ground after she ran towards a motorcade on its way to the LA Convention Center where North and South American leaders are gathered for the ninth Summit of the Americas in Los Angeles, June 8, 2022. (Photo by Apu Gomes/AFP Photo)

Participants approach a law enforcement officer with open arms during an opposition demonstration to protest against police violence and to reject the presidential election results near the Government House in Independence Square in Minsk, Belarus on August 14, 2020. (Photo by Vasily Fedosenko/Reuters)