 Police unions abuse collective bargaining to shield their members from accountability for the killings of unarmed black people and other heinous misconduct. No progress can be made without reining in the unchecked power of police unions. Look, I was Secretary of Labor. I'm in favor of unions. But police unionizing can have deadly consequences. One study found that extending collective bargaining rights to Florida sheriff's offices led to an estimated 40% increase in violent police misconduct. Another study found that the protections built into the police union contracts in America's 100 largest cities were significantly correlated with the killing of unarmed civilians. Another study suggests that the increase in police unionization from the 1950s through the 1980s resulted in about 60 to 70 additional civilians killed by the police each year, the majority of whom were people of color. Experts believe the protections in police union contracts give too many officers the sense they can abuse their power. Police contracts often have provisions allowing departments to erase disciplinary records within a few years, enabling officers with histories of misconduct to clear their records. Others allow accused officers to access their investigative files before being questioned, letting them manipulate their story. Others set strict time limits for citizens to file complaints about officers. Some prevent anonymous complaints from being investigated at all. All these provisions allow officers with histories of misconduct to stay on the force. Derek Chauvin, for instance, had at least 17 complaints lodged against him and never faced any discipline beyond two letters of reprimand. Needless to say, other public sector employees are not afforded these extraordinary protections. Even if an officer is fired, there is an extensive appeals process that usually works out in their favor. In Philadelphia, 62% of officers fired from 2006 to 2017 were reinstated. In San Antonio, 70% were. When New York police officer Daniel Pantaleo was finally fired, five years after choking Eric Garner to death, the New York Police Department's largest union responded by threatening a work slowdown. Police unions fight cities that enact even mild reforms like establishing civilian review boards. The result? Review boards are notoriously ineffective by design. Some police union contracts with cities forbid them even creating a review board. In the tragic case of Breonna Taylor, Louisville's review board could not start an investigation, take complaints from citizens, or recommend discipline for the officer. All it could do was make recommendations for policy or training changes. It's the same in other cities. Overside boards have no investigative power, no subpoena power, and no discipline power. Police unions also wield enormous political clout. A Guardian investigation found police unions spent about $87 million influencing state and local legislation over the past two decades. But at least $47.3 million on campaign contributions and lobbying at the federal level. In 2017, police unions spent $2 million to influence legislation in California alone. Now, don't get me wrong, stopping the abuses of police unions must not become a stalking horse for attacking public sector unions generally. But the unchecked powers of police unions urgently need to be addressed. To start, lawmakers must change state labor laws to restrict the subjects police unions can bargain over. They should limit negotiations to pay and benefits, not how police do their jobs, how and when they use force, and how and when they are disciplined. For decades, police unions have shielded officers from accountability, bullied cities into doing their bidding, and attacked lawmakers who took them on. It's past time to ensure they can no longer block accountability under the guise of collective bargaining.