BATON ROUGE, La. (AP) — The U.S. Justice Department is opening a sweeping civil rights investigation into the Louisiana State Police amid mounting evidence that the agency has a pattern of looking the other way in the face of beatings of mostly Black men, including the deadly 2019 arrest of Ronald Greene.

The federal “pattern-or-practice” probe announced Thursday followed an Associated Press investigation that found Greene’s arrest was among at least a dozen cases over the past decade in which state police troopers or their bosses ignored or concealed evidence of beatings, deflected blame and impeded efforts to root out misconduct. Dozens of current and former troopers said the beatings were countenanced by a culture of impunity, nepotism and, in some cases, outright racism.

“We find significant justification to open this investigation now. … We received information of the repeated use of excessive force, often against people suspected of minor traffic offenses, who are already handcuffed or are not resisting,” said Assistant Attorney General Kristen Clarke, who oversees the Justice Department’s civil rights division. She added there were also reports of troopers targeting Black residents in traffic enforcement and using “racial slurs and racially derogatory terms.”

The federal probe, the first such action against a statewide law enforcement agency in more than two decades, comes more than three years after white troopers were captured on long-withheld body-camera video beating, stunning and dragging Greene on a rural roadside near Monroe. Despite lengthy, ongoing federal and state criminal investigations into a death troopers initially blamed on a car crash, no one has been charged.

AP’s reporting found troopers have made a habit of turning off or muting body cameras during pursuits. When footage is recorded, the agency has routinely refused to release it. And a recently retired supervisor who oversaw a particularly violent clique of troopers told internal investigators last year that it was his “common practice” to rubber-stamp officers’ use-of-force reports without ever reviewing body-camera video.

In some cases, troopers omitted uses of force such as blows to the head from official reports, and in others troopers sought to justify their actions by claiming suspects were violent, resisting or escaping, all of which were contradicted by video footage.

Federal prosecutors also are still investigating whether police brass obstructed justice to protect troopers in the Greene case — and whether they sought to conceal evidence of troopers beating other Black motorists.

The head of the state police at the time of Greene’s arrest, Kevin Reeves, has denied the death was covered up but current commanders have told lawmakers investigating the state’s response that it was. The agency’s own use-of-force expert called what troopers did to Greene “ torture and murder.”

The AP also found that a former trooper implicated in three separate beatings, Jacob Brown, tallied 23 uses of force dating to 2015, 19 of which involved Black people. In one case that resulted in federal charges, Brown was seen on body-camera video beating Aaron Larry Bowman 18 times with a flashlight after deputies pulled him over for a traffic violation in 2019. State police didn’t investigate the attack until 536 days later, and only did so after a lawsuit from Bowman, who was left with a gash to the head and a broken jaw, ribs and wrist.

“Finally!!!” Bowman’s attorney, Donecia Banks-Miley, said in a text message upon hearing of the pattern-or-practice probe. “We still need transparency and accountability to help bring restoration to the pain that continues to occur with LSP and other law enforcement agencies.”

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