In 2020 the law professors Ben Grunwald and John Rappaport studied about 98,000 police officers in Florida over 30 years. In an average year, just under 1,100 officers who had been fired from one agency were working for another, about three percent of all officers in the state. They were far more likely than others to be fired again or to draw complaints.
A national index of decertified officers, run by an association of state police standards bodies, lets departments check. In five years the share of police departments using it rose from 23% to 71%. A database of federal officers’ records, launched in 2023, was taken offline after an executive order in January 2025.