An officer executing a search warrant at a home reasonably believed that for officer safety he should pat down the defendant, who was present at the house when officers arrived to execute the search warrant. The search warrant application stated that illegal narcotics were being sold from the residence and that officers had conducted two previous controlled buys there, one only 72 hours earlier. When officers entered, they found six individuals, including defendant and saw drugs in plain view. Based on his experience as a narcotics officer, the officer testified to a connection between guns and drugs.