Utah Code § 78B-7-119: Duties of law enforcement -- Enforcement.

A law enforcement officer shall, without a warrant, arrest an alleged perpetrator whenever there is probable cause to believe that the alleged perpetrator has violated any of the provisions of any of the following that has been served on the alleged perpetrator:

(1) an ex parte civil protective order;

(2) a civil protective order;

(3) an ex parte civil stalking injunction;

(4) a civil stalking injunction;

(5) a criminal protective order;

(6) a permanent criminal stalking injunction; or

(7) a foreign protective order enforceable under Part 3, Uniform Interstate Enforcement of Domestic Violence Protection Orders Act.