TMZ: Sutherland Arrest Could Spell Trouble in LA

The Los Angeles City Attorney's office has asked the NYPD for details on the headbutting arrest of the FOX hit "24" star Kiefer Sutherland, TMZ.com reported. Sutherland is on probation for a DUI conviction in California. One of the conditions of the probation is that he must obey all laws. That means the city attorney could ask a judge to revoke the actor's probation and toss him behind bars.

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Sutherland's lawyer says an investigation by New York City officials into a charge he head-butted a fashion designer will show he was not a wrongdoer or instigator.

The star was charged Thursday with third-degree assault after fashion designer Jack McCollough reported the incident. Police say the two apparently argued at a party in Manhattan before McCollough was head-butted. Sutherland was interviewed by investigators, given a ticket and released on his own recognizance. The minor charge is akin to a speeding ticket.

Representatives for McCollough say his injuries are more serious than what was initially noted on the police report. McCollough's nose was broken in several places and he had to seek medical treatment after the altercation. The police report says he suffered a cut on his nose.