An anonymous caller says a man in a plaid shirt at the bus stop has a gun. You find the plaid shirt. Frisk him? Florida v. J.L. says not on that alone.
What did Florida v. J.L. decide?
An anonymous tip that a person is carrying a gun, without more, is not enough to justify a Terry stop and frisk. A tip must be reliable in its assertion of illegality, not merely in its description of a particular person — and the Court refused to create a firearm exception to Terry.
Florida v. J.L., 529 U.S. 266 (2000) — read the opinion on CourtListener.
What does J.L. allow?
- A stop and frisk where the tip is corroborated by predictive information the caller shouldn’t otherwise know, or by your own observation of criminal activity
- Reliance on a known, identified, or traceable caller who can be held accountable
- A frisk during a lawful stop where you have reasonable suspicion the person is armed and dangerous, on facts of your own
What does it NOT allow?
- A frisk on a bare anonymous ‘man with a gun’ call that only describes clothing and location
- Treating an accurate description as corroboration of criminality — it corroborates identity, nothing more
- A firearm exception — the danger of guns doesn’t lower the Terry standard
How it plays out on the street
Compare this with Navarette. There, a 911 caller gave a firsthand, contemporaneous eyewitness account of dangerous driving through a system with accountability safeguards; here, the tip was a bare accusation with nothing behind it. The difference is reliability markers, so build them: who called, how they knew, how fresh it was, whether it came through a recorded and traceable line, and what you independently observed before you put hands on anybody.
Frequently asked questions
Can police frisk someone based on an anonymous gun tip?
Not on the tip alone. It needs reliability about the alleged crime — corroboration, predictive detail, an accountable caller, or your own observations.
Is there a firearm exception to Terry?
No. The Court expressly declined to create one, even for reports involving guns.
Related cases
- Navarette v. California (2014): Can an Anonymous 911 Call Justify a Stop?
- Terry v. Ohio Still Runs the Show: Reasonable Suspicion on Every NJ Traffic Stop
- Michigan v. Long (1983): Can Police Frisk a Car for Weapons?
Carry the rule, not the guesswork. Every case in StreetSense is broken down like this — bottom line, limits, and the exact citation — verified against the real opinion and available fully offline on shift. Start the free trial.
StreetSense is an educational reference for law enforcement, not legal advice. Federal cases set the floor — your state constitution, statutes, and department policy can impose stricter limits. Always follow your state’s rule and your agency’s policy.
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