RIVERHEAD - ? A Riverhead police officer is being sued for $3 million for allegedly beating a handcuffed man inside the town courthouse.

William Robinson says he was being escorted out of Riverhead Town Court in 2007 when he was punched multiple times in the head.  At one point, he says he was kicked in the head while still on the ground, allegedly by Riverhead police officer Peter Troyan.  There is surveillance video of the alleged incident.

Robinson is claiming his civil rights were violated.

Robinson's attorney, Brian Dratch, says his client was in court that day on charges of driving with a suspended license and drug possession and should have never been attacked.

Troyan's attorney says the officer's behavior is justifiable and that a previous grand jury failed to indict him. He says there is more to the story than just the video, but would not elaborate.