Utah Code Title 76. Utah Criminal Code § 76-8-807. Trespassing at a war or defense facility

(a) the actor intentionally enters a facility engaged in, or preparing to engage in, the manufacture, transportation, or storage of a product to be used in the preparation of the United States government or of a state government for defense or for war or in the prosecution of war by the United States government;

(b) the actor does not have permission from the owner of the facility to enter; and

(c) the facility has posted signs reading “No Entry Without Permission.”

(4)(a) A peace officer or individual employed as a watchman, a guard, or in a supervisory capacity on the premises of a facility under this section may stop an individual found on the premises and detain the individual for the purpose of demanding the individual's name, address, and reason for being on the premises.

(b) If the peace officer or individual employed as a watchman, a guard, or in a supervisory capacity on the premises of a facility under this section has reason to believe that an individual stopped on the facility's premises has no right to be there, the peace officer or employee may: