PROVO — Police arrested an Orem woman who allegedly pinned her ex-husband between a minivan and a police car Thursday, then beat him, first with a binder and then with a tire iron.

According to police reports, the 26-year-old woman spotted her ex-husband, with whom she is fighting for custody of the couple's daughter, in Springville. She followed him and when he stopped at the Provo police station, she struck him with a minivan, pinning him against a police car.

The woman then beat him with a binder, police said. When the binder wasn't having the desired effect, she retrieved a tire iron from the back of the minivan and began to hit him.

Police and witnesses intervened.

Police said the woman admitted to using methamphetamine and Xanax within the last 36 hours. Police searched her and found she had a switchblade knife. A record check revealed she was driving on a suspended license and had two warrants for her arrest.

Police booked the woman into Utah County Jail for investigation of aggravated assault, possession of a concealed weapon, driving while under the influence and on a suspended license. Her bail has been set at $7,500.