There is no doubt that there are corrupt cops, just as there's no doubt that there are corrupt politicians and corrupt civilians. That doesn't give the federal government the right to infringe upon the rights of state and local governments. The states have jurisdiction over their law enforcement officers. Besides, not all lethal force used against CRIMINALS is unjustified! LEOs are tasked with the job of protecting the rest of us from people who don't respect and obey our laws and who are a danger to society, and they frequently put their lives at risk in carrying out their duties. On any given day they may have to deal with terrorists, illegal aliens, meth cooks, and dangerous gangs. They are charged with the impossible task of upholding a broken social contract. "Take all the risks of doing your job, go up on all those roofs, patrol all those subway platforms, walk the streets day and night, take the risks to yourself, take the risks to your family, but then when the worst happens, when there’s a tragedy, that you will not have the backing of the New York police commissioner.” -- Patrick J. Lynch, who heads the NY Patrolmen’s Benevolent Association, a union for more than 20,000 beat cops in the city’s five boroughs (sergeants, captains, lieutenants and detectives have their own unions) "Not that those who enforce the law always abide by it. To an unabashed cop defender like Lynch, what he says are rare instances of police misbehavior have received an inordinate response that points to a deeper antipathy, a growing ingratitude. 'Maybe we’re forgetting what it felt like to be afraid,' he says with something approaching bitterness." http://www.newsweek.com/2014/10/31/patrick-lynch-new-york-citys-blue-bulldog-278942.html