Lindsay Lohan has been accused of shoving a woman at a West Hollywood nightclub.
The Mean Girls actress - who last month successfully completed the terms of her probation, which was initially set as punishment for a 2007 driving under the influence conviction - was allegedly involved in an altercation with another female during a night out last week and on Saturday, the woman filed a battery complaint against Lohan.
Los Angeles County Sheriff's official Sergeant Chris Bowman said: "It's just an allegation. It's been received by our detectives."
Bowman said a detective will check the validity of the complaint but Lohan's publicist has questioned why the woman waited until Saturday to go to the sheriff department's at West Hollywood Station to file a complaint.
Steve Honig said: "You have to wonder about someone who calls the media before the police."