C.R.S. § 16-3-103: Stopping of suspect.

(1) A peace officer may stop any person who he reasonably suspects is committing, has committed, or is about to commit a crime and may require him to give his name and address, identification if available, and an explanation of his actions. A peace officer shall not require any person who is stopped pursuant to this section to produce or divulge such person's social security number. The stopping shall not constitute an arrest.

(2) When a peace officer has stopped a person for questioning pursuant to this section and reasonably suspects that his personal safety requires it, he may conduct a pat-down search of that person for weapons.