Terry stop criteria

• A. Probable cause to arrest
• B. Unusual conduct leading to conclusion that criminal activity may be afoot and that the person may be armed
• C. A search incident to arrest
• D. A consent to search

Answer: (B)

The key idea being tested is the threshold for a Terry stop: the officer must have reasonable suspicion based on articulable facts that criminal activity may be afoot and that the person may be armed. This standard justifies a brief stop and a protective pat-down if there’s a reasonable fear of danger. The option that describes unusual conduct giving rise to a belief that something criminal might be happening and that the person could be armed matches exactly this standard. It reflects why stop-and-frisk is allowed in that context. The other choices describe searches or the higher standard needed for arrest (probable cause) or separate procedures that aren’t the basis for initiating a Terry stop.