Describe the circumstances under which a law enforcement officer can legally conduct a 'stop and frisk' according to Terry v. Ohio, and what constitutes a permissible scope of a frisk.

According to the Supreme Court case Terry v. Ohio, a law enforcement officer can legally conduct a 'stop and frisk' under specific circumstances. First, the officer must have 'reasonable suspicion', based on specific and articulable facts, that criminal activity is afoot. This means the officer must be able to point to objective facts and rational inferences that lead them to believe that the person they are stopping is, or is about to be, involved in a crime. Second, the officer must have a reasonable belief that the person is arm....