A former investigator for the federal government admitted in the District’s federal court that he falsified work during background checks of potential employees and individuals seeking security clearances, the Justice Department announced.

Stewart Chase, 53, a contract employee for the office Office of Management and Budget, pleaded guilty to one count of making a false statement. Scheduled to be sentenced Oct. 6, he faces a maximum of five years in prison.

Chase, employed by United States Investigations Services and CACI International, Inc., admitted that he falsified documents in nearly 50 background investigations. The investigator claimed to have interviewed someone or to have reviewed a record when he had not taken either step, prosecutors said.

OPM had to reopen those investigations at an estimated cost of about $130,000. Chase is the latest in a string of background investigators who have ended up in federal court on charges they falsified such work.