Can a law officer conduct a search for weapons pursuant to a limited detention?

A law officer may conduct a search for weapons pursuant to a limited detention if a reasonably prudent person under the circumstances would be warranted in the belief that his safety or the safety of others was in danger. United States v. Salas, 879 F.2d 530, 535 (9th Cir.), cert. denied, 493 U.S. 979 (1989); Thomas, 863 F.2d at 625. The aim of the limited search is "not to discover evidence of crime, but to allow the officer to pursue his investigation without fear of violence." Adams v. Williams, 407 U.S. 143, 146 (1972). The court must look to the totality of the circumstances to determine whether there was reasonable suspicion for a pat-down search. Prieto-Villa, 910 F.2d at 605.