To detain a person briefly to investigate potential criminal activity, what standard must be met?

• A. Probable cause
• B. No standard is required
• C. Reasonable suspicion
• D. Reasonable belief

Answer: (C)

Reasonable suspicion is the level of justification needed for a brief investigative detention. It means the officer has a factual basis—based on the totality of circumstances and their training and experience—that the person is involved in, or about to be involved in, criminal activity. This isn’t a gut feeling or a mere hunch; it’s articulable and specific facts that together point toward possible wrongdoing. Because police stops are intrusive, they must be limited in scope and duration to what’s needed to confirm or dispel the suspicion. If new facts rise to the level of probable cause, the investigation can escalate; if not, the detention ends.

The other options don’t fit the standard for this brief detention. Probable cause is a higher threshold used for arrest or search warrants, not for a short investigative stop. Saying no standard is required would ignore the constitutional protection against arbitrary detentions. While “reasonable belief” might sound similar, the legally recognized term and standard here is reasonable suspicion.