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TogglePolice pulled my client over for a dark license plate. The moment they saw he had a record, the questions stopped being about the plate. The law requires something specific before police can go fishing, and your past is not part of it.
There is a moment in a lot of my cases that never makes the news, because nothing violent happens. An officer runs your name, sees something in your past, and decides you are worth a closer look. The traffic violation is forgotten. Now the officer is fishing, and you are the water. That is what happened to Johnathan Cain, and it is worth a whole post, because the idea at the center of it, reasonable suspicion, is one of the most misunderstood rules there is.
The short answer
To hold you past the traffic violation, to shift from “your plate light is out” to “let’s talk about your history,” an officer needs reasonable suspicion: specific, articulable facts pointing to a particular crime you are actually involved in right now. A record from years ago is not that. Neither is your silence, your decision to decline a search, or your being annoyed at being detained. And “officer safety,” by itself, is not a magic phrase that excuses it.
GREG KIRAKOSIAN’S LEGAL EYE VIEW
In years of suing police, I have learned that a record follows people into every encounter like a shadow, and officers treat it as permission. It is not. The law is blunt about this: your past is not a crime you are committing tonight. What I tell every client is that the deputy needed a fact, a real one, pointing at something happening right now. A rap sheet is not a fact about tonight, and neither is your silence.
What reasonable suspicion actually requires
Reasonable suspicion is not a feeling. It comes from Terry v. Ohio (1968): an officer who wants to detain you must “point to specific and articulable facts” that warrant it, and cannot rely on an “inchoate and unparticularized suspicion or hunch.” Terry v. Ohio, 392 U.S. 1, 21, 27 (1968). It has to be particularized, aimed at a particular person for a particular crime, not a type of person or a kind of neighborhood. It is a lower bar than probable cause, but lower is not empty. There still has to be a real fact tying you to a real crime. That is the thing the deputy never had, and, to his credit, could not manufacture under oath.

The case at the heart of this: Brown v. Texas
The clearest illustration is decades old. In Brown v. Texas (1979), two officers in El Paso stopped a man in an alley in what they called a high drug problem area because the situation “looked suspicious” and they had never seen him there before. They demanded his identification. He refused. The Supreme Court reversed his conviction: the officer could not point to any facts supporting his suspicion, and being in a rough neighborhood “standing alone” was not a basis to conclude that this man was doing anything wrong. 443 U.S. at 52. Set that beside Johnathan’s stop. A vague high-crime-area hunch, an officer who could not name a crime, and a person treated as suspicious for saying little. Brown answered that question more than forty years ago.
Your record is not a present reason to detain you
Here is the belief that drives these stops, and it is wrong: that once an officer learns you have a record, they can treat you as a suspect. The Ninth Circuit has said it directly, that “a prior criminal history cannot alone establish reasonable suspicion or probable cause,” though it can be one factor in the total picture (Burrell v. McIlroy, 464 F.3d 853, 861 (9th Cir. 2006)). Your past can be one thread in the fabric. It can never be the fabric. This came up in Johnathan’s case in a telling way. Before trial, the defense wanted to wave his old felon-in-possession conviction in front of the jury as proof the deputy’s suspicion was reasonable. The court allowed it only for the narrow question of what the deputy actually knew, and barred using it to paint Johnathan as the kind of person who commits crimes. His older drug convictions were excluded entirely as too old. Even where a record comes in at all, it comes in on a leash, and it can never be the thing that, by itself, justifies detaining you.
Exercising your rights is not suspicion
The second thing police reach for is more troubling, because it punishes the very rights the Constitution gives you. You have the right to decline to answer questions (Royer) and the right to refuse a search, and courts have squarely held that refusing consent cannot supply reasonable suspicion (Thomas v. Dillard, 818 F.3d 864, 884 (9th Cir. 2016)). The defense loves a stacking move: “sure, refusing is protected, but here it was refusal plus nervousness plus the record plus the hour.” Courts reject it. A protected right is worth zero in the suspicion calculus, and zero does not become something by sitting next to other facts. You cannot launder a constitutionally protected “no” into evidence of guilt.
“Officer safety” is not a magic phrase
The defense built its case on “officer safety,” as if the words rubber-stamp whatever the deputy did. The Supreme Court closed that door in the very case that governs prolonged stops. In Rodriguez, the Court allowed “negligibly burdensome precautions” tied to the mission, but drew a bright line: safety steps that are really cover for a criminal investigation the officer had no business starting do not count. And escalating on safety grounds requires specific facts that the person is armed and dangerous, not a general sense that it is late in a bad area (Arizona v. Johnson). “It was late and he has a record” is exactly the profile-based reasoning that does not meet the standard.
The totality, answered honestly
The government gets to add the facts together rather than knock them down one at a time. So the honest question is not whether any single fact was weak. It is whether all of them together pointed at a particular crime. They did not. Add up the hour, the area, the record, the nervousness, the disputed movements, and the frustration, and you still do not get a specific crime the deputy could name. As the court put it, he “fails to ever identify any particular crime or offense he reasonably suspected [Johnathan] of having committed.” A pile of zeroes is still zero. I proved that the only way it can be proved: by walking the deputy through his own timeline under oath until he had to name the crime he suspected, and then letting the answer stand. That is why we won on summary judgment, and why the case resolved for $295,000.

What to do if police lean on your past or on “safety”
- Stay calm, keep your hands visible, and provide your license, registration, and insurance.
- You do not have to discuss your record: “I would rather not answer questions about that.”
- Ask, “Officer, am I free to go?”
- You can decline searches: “I do not consent to any searches.” Declining is your right, not evidence of guilt.
- Do not resist. You win these in court, not on the street. Remember the details and, if safe and lawful, record.
FAQs
1. Can police detain me longer just because I have a criminal record?
No. A prior record cannot, by itself, create reasonable suspicion. It can be one factor among many, but the officer still needs specific facts pointing to a particular current crime.
2. Do I have to answer questions about my past at a traffic stop?
No. You can decline, and your refusal cannot be used as a reason to detain you.
3. Can refusing a search be held against me?
No. Refusing consent cannot supply the reasonable suspicion needed to detain or search you, and it is not evidence of guilt.
4. Isn't "officer safety" a good enough reason for almost anything?
No. Safety steps tied to the traffic stop are allowed, but the phrase cannot justify a criminal investigation the officer had no basis to start, and escalating on safety grounds requires specific facts that you are armed and dangerous.
5. Does this only apply to traffic stops?
No. Reasonable suspicion is the same standard that governs street stops on foot. Terry itself was a sidewalk case.
Primary sources: Terry v. Ohio (1968) and Brown v. Texas (1979).
Related on our site: How Long Can Police Keep You at a Traffic Stop and Our Civil Rights practice.
Cases cited: Terry v. Ohio, 392 U.S. 1 (1968); Brown v. Texas, 443 U.S. 47 (1979); Burrell v. McIlroy, 464 F.3d 853 (9th Cir. 2006); Florida v. Royer, 460 U.S. 491 (1983); Thomas v. Dillard, 818 F.3d 864 (9th Cir. 2016); Rodriguez v. United States, 575 U.S. 348 (2015); Arizona v. Johnson, 555 U.S. 323 (2009). Rulings: Cain v. City of Yucaipa, No. 5:24-cv-01682-KK-SHK (C.D. Cal.), Dkts. 68 and 69.