The University of Iowa police charged a North Liberty man after he allegedly broke the window of a patrol car and head-butted an officer.

Christopher Robin Ross, 24, was charged Oct. 23 with third-degree criminal mischief and assault causing injury on peace officers and others.

According to complaints, Ross was placed under arrest for public intoxication and interference with official acts; he became angry and head-butted the rear passenger side window of a patrol car during a search.

The complaint said the window shattered, causing an estimated $800 in damage.

When officers were trying to control Ross, he allegedly refused to get in the patrol car and head-butted and kicked an officer, causing a bump above his left eye.

Third-degree criminal mischief is an aggravated misdemeanor, punishable by up to two years in jail and a maximum fine of $6,250. Assault causing injury on peace officers and others is a Class D felony, punishable by up to five years in jail and a maximum fine of $7,500.

— by Hayley Bruce