The GOWISELY Procedure
Police must follow a strict procedure called GOWISELY when conducting stop and searches. Each letter represents something they must do: explain their Grounds, state the Object of the search, show their Warrant card if in plain clothes, give their Identity, name their police Station, explain you're Entitled to a search record, cite the Legal power (usually s1 PACE 1984), and inform You that you're being detained.
During questioning, you can refuse to answer questions (from Rice v Connelly), but you must remain polite (Ricketts v Cox). Clothing removal is limited to outer items like jackets, gloves, and hats under s2(9) PACE - anything more intimate must happen away from public view.
If you don't cooperate, police can use reasonable force under s117 PACE and Kenlin v Gardener, but searches should normally be conducted without force.
Top tip: Knowing the GOWISELY procedure helps you identify whether police are following proper legal requirements during a stop and search.