That's right, I'm a scofflaw of sorts and have been known to break a few traffic laws. Thankfully, though, I have yet to be caught doing so (knock on wood). I got to thinking about this the other day (as I was flying down the highway) specifically about the various ways people can get pulled over.
So, how many reasons do you think there are that police can pull you over? Well, If you count actual, codified legal reasons, most states have 200–400 distinct traffic and vehicle code sections of which roughly 150–250 are enforceable as stop-justifying violations, like:
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Speed-related (multiple sub-rules)
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Lane positioning
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Signaling timing
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Equipment specs (color, brightness, placement)
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Registration display rules
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Driver conduct rules
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Pedestrian/right-of-way interactions
Soooooo ballpark guesstimate: there are maybe about 200 legitimate statutory reasons a police officer could lawfully stop a vehicle in a typical U.S. state?
Now, if you count discretion-based or “catch-all” violations, the number of possible pull-overable violations dramatically increase the number. Nearly every state has vague statutes like:
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“Careless driving”
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“Unsafe operation”
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“Failure to maintain lane”
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“Driving at a speed not reasonable and prudent”
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“Equipment not in safe working order”
and each of these can be triggered by dozens of observable behaviors. Sooooo, again, ballpark guesstimate: maybe another couple hundred more practical justifications.
Given all that and because the SCOTUS went and ruled in Whren v. United States, 517 U.S. 806 (1996) that any traffic violation, no matter how minor, gives police probable cause to stop a vehicle, we are all in danger of getting pulled over and for any of the 400-ish reasons government has come up with to separate we the people with our hard-earned cash.
Notwithstanding all that, and after extensive research into all things reasons police pull people over, I've come up with the top 10 reasons police pull people over (in all states). To wit:
1. Speeding
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Driving above the posted speed limit is one of the most common reasons for being pulled over. Officers may also pull over drivers who are going too fast for the road conditions (e.g., in poor weather).
Speeding ends up as the #1 reason police pull people over because it sits at the intersection of law, safety, detectability, and enforcement practicality. No other traffic offense checks all those boxes as cleanly. Common penalties for speeding include:
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Fines – Usually the first hit. The faster over the limit, the higher the fine.
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Points on your license – Many places add demerit points; too many can lead to suspension.
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Higher insurance rates – Even one ticket can bump your premiums for years.
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Traffic school – Sometimes required, sometimes optional to reduce points.
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License suspension or revocation – More likely for extreme speeding or repeat offenses.
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Court appearance – Required in some cases, especially if the speed was very high.
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Vehicle impoundment – In some jurisdictions for excessive or reckless speeding.
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Criminal charges – If speeding is classified as reckless driving (e.g., 25–30+ mph over the limit).
As it relates to speeding, fines are typically based on how fast your are traveling and vary state by state. To that you can usually expect to pay:
First Offense (example speed ranges):
1–10 mph over limit: about $120–$130
11–15 mph over: about $150–$160
16–20 mph over: about $200–$210
21–25 mph over: about $270–$280
26–30 mph over: about $370–$380
31+ mph over: base $470–$480+
2. Running a Red Light or Stop Sign
Ignoring traffic signals or failing to stop at stop signs is dangerous and a frequent cause for police intervention.
Turns out running a red light or stop sign really is one of the most dangerous everyday driving behaviors, and the reason has less to do with speed alone and more to do with how crashes happen at intersections. When someone runs a red light or stop sign:
Vehicles are crossing at 90-degree angles,
There’s no shared direction of travel, and
There’s often no time to react.
Running a red light or stop sign is dangerous because it:
- Creates unavoidable, perpendicular collisions
- Removes reaction time from innocent drivers
- Targets the weakest parts of vehicles
- Endangers pedestrians and cyclists
- Turns small timing errors into major crashes
Bottom line, running a red light is not just illegal — it’s one of the highest-risk choices a driver can make in everyday driving.
3. Improper Lane Changes or Failure to Signal
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Not signaling before changing lanes or making turns can create confusion on the road and is a traffic violation that often leads to a stop.
Improper lane changes combine high crash risk, constant occurrence, and are easily enforceable—even though they don’t feel as dangerous as speeding or red-light running. Lane changes may not feel dramatic, but in real-world traffic safety and policing, they’re one of the most consequential everyday mistakes drivers make.
4. Tailgating (Following Too Closely)
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When a driver follows another vehicle too closely, it’s considered unsafe and can lead to a ticket or a stop, especially in high-traffic areas.
Even though it often feels like a minor annoyance rather than a serious risk. The danger of tailgating comes from physics, human reaction time, and chain-reaction crashes, not just irritation.
While tailgating feels minor, from a safety standpoint, it’s one of the most mathematically unforgiving driving behaviors because it:
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Eliminates reaction time
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Makes collisions unavoidable
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Causes chain-reaction crashes
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Amplifies small mistakes
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Turns ordinary braking into emergencies
5. Driving Under the Influence (DUI)
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Officers will pull over vehicles that exhibit erratic driving behavior, such as swerving, slow or fast speeds, and inconsistent braking, which are often signs of impaired driving.
While DUI is often associated with drinking alcohol, DUI includes many more things and in many ways non-alcohol DUIs are just as dangerous—or more dangerous—because drivers often don’t realize they’re impaired.
DUI (Driving Under the Influence) generally means driving while impaired, not just drunk. Depending on the state, it may also be called:
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DUI (Driving Under the Influence)
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DWI (Driving While Intoxicated or Impaired)
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OUI / OWI
The common legal standard is: Impairment to the extent you cannot safely operate a vehicle. Alcohol is just one way that impairment happens.
Substances that can cause a DUI (besides alcohol) include:
A. Prescription medications
B. Over-the-counter (OTC) medications that cause sedation, blurred vision or reduced altertness.
C. Marijuana (THC). THC can slow reaction time, impair attention and tracting, and distort perception of time and distance.
D. Illegal drugs like Cocaine, Methamphetamine, heroin, MDM, and LSD.
E. Combined substances such as:
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alcohol + marijuana
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alcohol + prescription meds
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multiple prescriptions together
F. Inhalants and household substances like nitrous oxide, solvents, or aerosols.
G. Non-substance impairment can also count. In some states, DUI laws also cover:
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Extreme fatigue (sleep deprivation)
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Certain medical episodes (if known and ignored)
6. Expired Tags or Registration
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If your license plates are expired, officers may pull you over to check the registration and ensure the vehicle is properly insured.
While money is part of the system — expired tags are a pull-over offense mainly because of administrative control and accountability, not because it’s a high-profit enforcement tool. In fact, like DUI, expired-registration stops often cost more to enforce than they money they generate.
7. Broken or Non-Functional Lights
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A malfunctioning brake light, headlight, or turn signal could result in a traffic stop. Police often look for vehicles that are unsafe or in violation of basic equipment regulations.
Police often issue fix-it tickets as a way to get drivers to keep cars safe (for other drivers). Fix-it tickets (sometimes called corrective action tickets) are minor traffic citations that don’t carry heavy fines or points, but instead require the driver to correct a violation and prove it to the court or DMV.
The good thing about fix-it tickets is that they are often cheaper and less burdensome than standard citations. For minor issues:
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Drivers who can’t immediately pay a big fine can still comply
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This avoids a cycle of escalating penalties for small infractions
8. Driving Without a Seatbelt
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Failing to wear a seatbelt is a primary offense in many states. Officers often stop drivers and passengers if they notice they are not buckled in.
The thing is that seatbelt laws just feel like a money grab because seatbelt tickets are often low-cost fines and enforcement is easy — officers can issue a citation on sight.
However, the purpose of seatbelt laws is safety first, not money. Wearing a seatbelt reduces the risk of death in a crash by about 45%. Wearing seatbelts also reduce the risk of serious injury by about 50% and unbelted occupants can become projectiles, injuring passengers or first responders. In fact, before mandatory seatbelt laws, hospital and insurance data showed huge costs from preventable injuries.
9. Unusual or Erratic Driving Behavior
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Sudden lane changes, inconsistent speeds, or driving in a way that suggests distraction or lack of control may prompt a police officer to pull you over for a safety check.
Years ago, the law office i worked represented a guy who was charged with driving erratically (essentially, he was weaving back and forth in his lane. At the time, we thought, as did the judge when we won, that the copy had lost his mind. Weaving back and forth in his lane? What's the harm in that?
Which is what I thought until I was driving on the 5 freeway in Orange County (California) one night out of Buena Park when I had this nutjob swerve right next to me, then over to the other side and back and forth.
If you don't know what's doing on, you're liable to swerve to get out of his way because you don't know if he's going to ram into you causing you then to swerve into the other lane causing a chain reaction.
Yeah, scary stuff this one is.
10. Failure to Yield to Pedestrians
Not stopping or yielding for pedestrians in crosswalks is a traffic violation that can lead to a stop, especially in areas with heavy foot traffic.
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