Staring at assault charge for his alleged scuffle in New York City this week, Kiefer Sutherland is due to surrender to police in Lower Manhattan today.

Moreover, authorities in Los Angeles may come down even harder on him after the angry star allegedly head-butted Jack McCollough for some reason.

Sutherland is currently serving a five-year probation term in Los Angeles for his second DUI conviction (for which he served 48 days in jail this winter) and may have violated those terms, which clearly state the actor must "obey all laws."

"Our office intends to contact the NYPD and New York prosecutors to review the incident and determine whether Mr. Sutherland violated the terms of his probation," L.A. City Attorney spokesman Frank Mateljan said in a statement.

A probation violation often means a return to jail.

SMOKED: Kiefer Sutherland enjoys a cigarette after smoking Jack McCollough with a head-butt to the dome. Just another night at the MET Costume Institute Gala.

If Sutherland's found in violation of probation for battery, and if he was intoxicated at the time, he could well be sentenced to another 48 days or more.

The 24 star, who says he was protecting Brooke Shields (who reportedly said this is not the case) from Jack McCollough, will surrender to authorities and face a third-degree assault charge, according to the New York Daily News.

The actor will be issued a desk appearance for the misdemeanor, with no jail and no restrictions on travel before his arraignment, a source says.