Which best describes the standard for a police-initiated investigative stop and frisk under the Terry framework?

• A. Specific and articulable facts that, taken together with rational inferences from those facts, would lead to a reasonable conclusion that possible criminal behavior is at hand and that both an investigative stop and a frisk are required.
• B. Probable cause to arrest the person.
• C. A mere hunch or guess by the officer.
• D. Only if there is an arrest warrant issued beforehand.

Answer: (A)

The concept being tested is the Terry stop framework: a police-initiated stop is allowed when the officer has reasonable suspicion based on specific and articulable facts, along with rational inferences from those facts, that criminal activity may be afoot. If during that stop the officer reasonably believes the person is armed and dangerous, a frisk (pat-down) is permitted to check for a weapon. The best description matches this two-part standard—reasonable suspicion grounded in concrete facts and inferences justifying the stop, with a potential frisk when there’s a reasonable belief of danger.

Why this fits: it uses the precise language of Terry—specific and articulable facts plus rational inferences leading to a reasonable conclusion that criminal activity may be at hand, which justifies the investigative stop; and it recognizes that a frisk is allowed if there’s a reasonable belief the person is armed, to ensure safety.

Why the other ideas don’t fit: stopping someone requires more than a mere hunch, and not all stops lead to a frisk; a frisk is conditional on the reasonable belief of danger, not a blanket requirement. Also, stops do not require an arrest warrant.