The female police officer was not named in charging documents, and police officials did not identify her. The head of the police officers’ union said he had not been made aware of the investigation. Danny Onorato, Brown’s lawyer, declined to comment, as did a spokesman for the U.S. Attorney’s office, which is handling the prosecution.
Brown was charged with assault after a man said Brown and his bodyguard, Christopher Hollosy, had punched him after he tried to get into a picture the singer was taking with two other people. Brown’s lawyer said he is innocent of the misdemeanor charge and revealed in court last week that he had rejected a plea offer. He is due back in court Feb. 20.
Hollosy has rejected the same deal that Brown was offered, his lawyer has said.
At the time Brown was charged in Washington, the Grammy winner was on probation in California for a 2009 attack on singer Rihanna, his then-girlfriend. As a result of the new charge, a judge in December revoked Brown’s probation in California, but the ruling didn’t change a requirement that Brown complete rehab and community service including roadside cleanup and graffiti removal.