A constable may search the person .
A constable detain them for the purposes of searching them for temporary class drugs , if it does not appear to the constable that a power under section 23 ( 2 ) applies to the case .
A constable may search the person and detain them for the purposes of searching them for temporary class drugs , if it does not appear to the constable that a power under section 23 ( 2 ) applies to the case .