A New York police officer who sued the city after 12 other officers beat him in his home and detained him in 2010 was awarded over $15 million in damages on Wednesday, his lawyer said.

A spokesman for the city’s Law Department, Nick Paolucci, said that the verdict was still in process and that a series of post-trial motions and questions could alter the outcome of the case.

Larry Jackson, the plaintiff, was off duty in August 2010 when his wife called 911 to report that an armed man had crashed a party at their home in Queens and was engaged in an argument with a group of guests.

Mr. Jackson, who is black, defused the situation and got the gunman to leave before the police arrived, but the scene was nevertheless chaotic when they did, according to court documents.