Nevada law permits DUI checkpoints, where police set up roadblocks and check every passing motorist for signs of intoxication. However, Las Vegas police no longer use checkpoints; instead, officers conduct “DUI blitzes” once or twice a month, where they drive around the city on the lookout for DUI suspects to pull over.1
Upcoming and Past DUI Checkpoints & Blitzes
In this article, our Las Vegas DUI attorneys discuss:
- 1. What are checkpoints and blitzes?
- 2. How They Work
- 3. Are they legal?
- 4. Is there advanced notice?
- 5. Common Locations
- 6. Penalties for Not Stopping
- 7. Can I turn around if I see a checkpoint?
- 8. Do I have to roll down my window at a checkpoint?
- 9. Defenses
- 10. Record Seals
- Additional Resources
1. What are checkpoints and blitzes?
DUI Checkpoints
DUI checkpoints in Nevada are cordoned-off areas of roads where police stop every driver to check whether they are under the influence.
All drivers going through the checkpoints get stopped, not only those exhibiting signs of intoxication. Then, police arrest the motorists they believe are driving drunk or driving under the influence of drugs.
Sometimes, police officers at roadblocks do not stop every car but every fourth car, or every license plate that starts with an even number, etc. Any predetermined formula for detaining drivers is allowed as long as it is not in any way discriminatory.
DUI Blitzes
By contrast, blitzes involve police driving around and actively hunting for DUI suspects to pull over. Las Vegas police no longer set up checkpoints and only conduct blitzes.
Police typically carry out blitzes in high-traffic areas during holiday weekends or special events when heavy drinking goes on:2
2. How They Work
Whether during a blitz or a checkpoint, the officer stopping you will likely ask:
- “Have you been drinking?”
- “Where are you coming from?”
- “Where are you going?”
You are not obligated to answer these questions because of your Fifth Amendment against self-incrimination. You are advised to respond politely, “Thank you, but I decline to answer.” The only time you have to answer is if they ask your name.
Meanwhile, the police are looking for signs of impairment, such as:
- Bad driving,
- An odor of alcohol on your breath,
- Bloodshot or glassy eyes, or
- Slurred speech patterns.
What Happens Next
The officer may also ask you to show your driver’s license, registration, and proof of insurance, which you are legally obligated to produce during a traffic stop.3
Some drivers try to avoid rolling down their windows by holding up their license and registration against the glass. In practice, the officer will claim they cannot see well that way and will require you to roll down your window (which will allow them to smell your breath).
If it is nighttime, officers usually shine a flashlight into the vehicle to see if you have any open or empty alcohol containers.
DUI checkpoints are an exception to the “probable cause” rule.
The Field Tests
If the officer believes you are sober, they will let you continue driving. Otherwise, they will ask you to submit to some tests. (If you are at a checkpoint, the police will direct you to pull over in a different area.)
First, the police will administer a mandatory preliminary breath test (PBT) to check your blood alcohol content (BAC). Anything above the following BAC levels is “per se” illegal:
- .08% per 210 liters of breath for non-commercial drivers;
- .04% per 210 liters of breath for commercial drivers; and
- .02% per 210 liters of breath for drivers under 21 years old.
The police may also ask you to perform non-mandatory field sobriety tests (FSTs) to check your coordination and ability to follow instructions.
The Arrest
If police believe they have probable cause that you are DUI, you will be arrested and required to submit to an:
Even if you are not intoxicated, you could still be cited for other traffic violations, such as:
3. Are they legal?
It is always legal for Nevada police to pull you over if they reasonably suspect you of DUI. This is true whether or not the traffic stop occurs during a formal DUI blitz.
Meanwhile, the United States Supreme Court held that DUI checkpoints are legal if they are conducted in a non-discriminatory way. Any intrusion caused by checkpoints is outweighed by the state’s interest in preventing drunk driving accidents.
Checkpoint Requirements
For DUI checkpoints to be legal under Nevada law, police must abide by the following four rules:
- The checkpoint must be clearly visible to approaching traffic from 100 yards away;
- A “Stop” sign must be placed near the centerline of the highway that is readable from 50 yards away;
- A flashing red light at the side of the highway must be clearly visible to oncoming traffic 100 yards away; and
- In urban areas, there must be warning signs at the side of the highway at least 700 feet from the roadblock to notify oncoming traffic about it. Additionally, these signs must be accompanied by a burning beam light, flare or lantern to attract attention. (In rural areas, these warning signs must be a quarter mile away from the roadblock.)
If the police fail to follow these protocols, your charges for driving through a roadblock may be reduced or dismissed.4
4. Is there advanced notice?
Nevada police may set up roadblocks and conduct blitzes without publicizing it first.5 However, law enforcement sometimes does disclose DUI checkpoints and blitzes a few days in advance.
5. Common Locations
Area commands patrol the entirety of Las Vegas. In our experience, the highest concentration of police cars during blitzes (and formerly during checkpoints) are in the following locations:
- Blue Diamond Rd.
- Buffalo Dr.
- Decatur Blvd.
- Frank Sinatra Dr.
- Maryland Pkwy.
- N. Nellis Blvd.
- Paradise Rd.
- Russell Ave.
- Tropicana Ave.
- Vegas Dr.
6. Penalties for Not Stopping
Traveling through a Nevada administrative DUI roadblock without stopping is a gross misdemeanor in violation of NRS 484B.580. Penalties include:
- Up to 364 days in jail and/or
- Up to $2,000 in fines.
Sometimes, people try to barrel through a roadblock and speed away, resulting in a police chase and probably a collision. When illegally driving through the roadblock results in death, substantial bodily harm or property damage in excess of $1,000, you face category B felony charges, carrying:
- 1 to 6 years in Nevada State Prison and/or
- Up to $5,000 in fines.6
Depending on the case, you may face drunk or drugged driving charges as well. See our article about Nevada DUI penalties.
DUI checkpoints are legal only if they display proper signage and signals.
7. Can I turn around if I see a checkpoint?
Yes. If you see warning signs of an upcoming DUI checkpoint in Nevada, you are allowed to take any legal detour prior to that checkpoint (such as through a side street) to avoid going through it.
However, you may not make an illegal U-turn or an improper turn or do anything else dangerously risky in order to escape a roadblock.7
8. Do I have to roll down my window at a checkpoint?
Some YouTube videos have suggested that motorists stopped at checkpoints should just:
- roll their window down a crack,
- slip their license through the crack to the officer, and
- not roll down their window any further.
Technically, there is no case law on whether this scenario is lawful. However, from our experience, failing to roll down your window if asked would just anger the police.
9. Defenses
Three common defenses to fight DUI checkpoint charges that our Nevada criminal defense attorneys rely on include:
- You followed the officer’s directions. Perhaps in the chaos of the roadblock, the police mistakenly thought you were disobeying them.
- The checkpoint was not legal. Perhaps the officers failed to erect the proper signage and signals.
- The police committed misconduct. Examples include the officer asking unreasonably intrusive questions or arresting you without sufficient probable cause (a “hunch” is not enough).
It is not a defense to argue that DUI checkpoints are unconstitutional. Police stopping you with no probable cause seems like an unlawful search and seizure; however, the U.S. Supreme Court ruled that correctly administered roadblocks are consistent with the Fourth Amendment.8
10. Record Seals
The following table shows the record seal wait time for driving through a DUI checkpoint.
| Disobeying a Nevada DUI Checkpoint | Record Seal Wait Time |
| Category B felony conviction | 5 years after the case ends |
| Gross misdemeanor conviction | 2 years after the case ends |
| Dismissal | Immediately |
Note that a misdemeanor DUI conviction has a seven-year waiting period for a record seal, whether or not a checkpoint was involved. Meanwhile, felony DUI convictions may never be sealed.9
Additional Resources
For more information, refer to the following:
- Alcoholics Anonymous – 12-step program to overcome alcoholism.
- Overcoming Alcohol Addiction – Information and support by helpguide.org.
- DUI schools by the Nevada Department of Motor Vehicles – The NV DMV lists all the official providers of alcohol education classes recognized by state and municipal courts.
- Impaired Driving Program by the Nevada State Police Office of Traffic Safety – A state program aimed at reducing serious and fatal DUI accidents.
- Nevada Approved Ignition Interlock Devices – List by the Nevada State Police Office of Public Safety.
Legal References:
- Sabrina Schnur, Las Vegas police DUI initiative aims for more arrests, fewer deaths, Las Vegas Review-Journal (February 12, 2021).
- NRS 484B.750. See, for example, Austin Carter, 23 drivers arrested at DUI checkpoint on Super Bowl Sunday, KTNV Channel 13 ABC (February 2019). Common DUI checkpoint dates are New Year’s Eve, Super Bowl Weekend, St. Patrick’s Day, Cinco de Mayo, Fourth of July, Labor Day Weekend, and Halloween.
- NRS 171.123. NRS 483.350. NRS 484A.650. NRS 482.255.
- Michigan Department of State Police v. Sitz (1990) 496 U.S. 444 (“In sum, the balance of the State’s interest in preventing drunken driving, the extent to which this system can reasonably be said to advance that interest, and the degree of intrusion upon individual motorists who are briefly stopped, weighs in favor of the state program. We therefore hold that it is consistent with the Fourth Amendment.”). NRS 484B.570. See also Motor Vehicle Safety Intervention Fact Sheets, CDC.
- NRS 484B.570; see, for example, Austin Carter, DUI Strike Team makes hundreds of arrests in 2019, KTNV Channel 13 ABC (January 2, 2020).
- NRS 484B.580.
- Same.
- Michigan Dept. of State Police v. Sitz (1990) 496 U.S. 444 (the public interest behind preventing DUI-related injuries and deaths is outweighed by any invasion of privacy the roadblocks cause, especially since the police questions are arguably not intrusive and do not delay drivers too much.)
- NRS 179.245; NRS 179.255.