A stop sign violation under Vehicle Code 22450 seems minor on its own, but it is one of the most common reasons an officer gives for the traffic stop that turns into a DUI investigation. I am Joel Brand, and because everything in a DUI flows from the legality of that first stop, this small infraction can matter a great deal to your case.
The text of the law
Vehicle Code 22450. (a) The driver of any vehicle approaching a stop sign at the entrance to, or within, an intersection shall stop at a limit line, if marked, otherwise before entering the crosswalk on the near side of the intersection. If there is no limit line or crosswalk, the driver shall stop at the entrance to the intersecting roadway. (b) The driver of a vehicle approaching a stop sign at a railroad grade crossing shall stop at a limit line, if marked, otherwise before crossing the first track or entrance to the railroad grade crossing. (c) Notwithstanding any other provision of law, a local authority may adopt rules and regulations by ordinance or resolution providing for the placement of a stop sign at any location on a highway under its jurisdiction where the stop sign would enhance traffic safety.
What the statute actually requires
The law requires a full stop at the right place: at the limit line if one is painted, otherwise before the crosswalk, and if there is neither, at the entrance to the intersecting roadway. The key word is "stop," meaning the vehicle comes to a complete halt. A "rolling stop," where the car slows but never fully stops, is the classic basis for a citation, and it is by far the most common version of this violation an officer will allege after a late-night stop. It is an infraction, and on its own it adds one point to your driving record under the DMV point system.
Why it matters in a DUI
In a DUI, the stop-sign violation is usually the officer's stated justification for pulling you over. That reason has to be lawful, because if the stop was not justified, the evidence that followed, the field sobriety tests, the breath or blood result, and the officer's observations, can be suppressed. A claimed rolling stop is often genuinely debatable: whether the car truly failed to stop, the officer's angle and distance, and what the dash-cam actually shows are all fair game.
Challenging the stop
When a stop-sign violation is the basis for the stop, I examine whether a real violation occurred and whether the officer could actually see it from where they were. If the footage shows a complete stop, or the officer's vantage point makes the observation unreliable, I can bring a motion to suppress under Penal Code 1538.5. A successful motion can knock out the entire foundation of the DUI case, because everything the state has flows from that initial stop.
The "wall stop" and partial-stop problem
Many citations come down to degree. The statute requires a complete stop, but officers and drivers often disagree about whether a brief pause qualified. A driver who slowed to a near-halt and then proceeded when the way was clear may genuinely believe they stopped, while the officer recorded a rolling stop. Because the violation is about a momentary event, the objective evidence, the video and the geometry of the intersection, is far more reliable than either person's memory, and it is the first thing I look at.
How it fits the larger defense
The stop-sign issue is one piece of attacking the lawfulness of the stop, which is the single most powerful category of DUI defense. It works alongside challenges to the field sobriety testing and the chemical evidence, and it can also reveal the broader police mistakes at a DUI stop. See my top DUI defenses for the full picture, and the defenses guide for how the pieces fit together.
Points, fines, and the record
As a standalone infraction, a stop-sign violation carries a fine plus assessments and the one point noted above. On its own that is minor, but when it accompanies a DUI it adds to your record and can be addressed as part of the overall resolution of the case. Keeping the point off your record matters for insurance and for the negligent-operator thresholds the DMV uses, which is one more reason not to simply pay the ticket without considering how it interacts with the DUI.
Pretext stops and the real reason
Officers sometimes use a minor traffic violation as a reason to stop a driver they already suspect of something else. A stop-sign violation is a convenient one, because almost everyone can be accused of not coming to a complete halt. The law allows a stop based on a genuine traffic violation even if the officer's deeper interest was a possible DUI, but the violation still has to have actually occurred and been observable. When the claimed violation is thin or the video does not support it, the "pretext" loses its lawful footing, and that is exactly the kind of gap I look for in the report and the footage.
What a good outcome looks like
For the stop-sign count itself, the realistic goals are dismissal of the infraction, keeping the point off your record, or folding it into the overall resolution of the DUI so it does not add separate consequences. More importantly, if challenging the stop succeeds, it can reshape the entire DUI, because suppressing the evidence from an unlawful stop frequently leaves the prosecution with too little to proceed. That is why I never treat the stop-sign citation as just a ticket to pay when a DUI is attached to it.
Cited for a stop sign and arrested for DUI? Let's talk.
Whether the stop was lawful is often the key question in your case, and it is exactly what I review. Use the free case analysis on this page, or call me directly at (888) 271-6644. I answer my own phone, 24/7.
Related traffic-stop charges: misdemeanor hit and run (VC 20002), following too closely (VC 21703), failure to yield (VC 21801).