"Public trust in Orange County’s criminal justice system has been eviscerated," an ACLU staff attorney said.
DA Tony Rackauckas requested the U.S. probe hours after a new report ripped his office for a "win at all costs" mentality.
Diverting murder cases away from him "disrupted" justice, the ruling said.
Prosecutors and cops in the county have violated the Constitution, they say.
Prosecutors who withhold evidence from the defense can be booted from a case.