DWUI Charges in Evanston and Uinta County
Wyoming calls it DWUI, not DUI, and the law reaches farther than most drivers expect. Driving anywhere in Uinta County with a blood alcohol concentration of 0.08% or higher will result in a criminal charge under Wyo. Stat. § 31-5-233. The same law covers impairment by any drug with no separate BAC required. Even sitting in a parked car with keys in reach counts as “actual physical control” under Wyoming law. Evanston is located where Interstate 80 exits Utah, and this stretch of highway is one of the most heavily policed in the state.
Three agencies work in this corridor: the Wyoming Highway Patrol, the Uinta County Sheriff’s Office and the Evanston Police Department. They coordinate. Christina Williams spent years on the other side of these cases, prosecuting DWUI charges before she started defending them. She knows how the case file is built and where it has holes.
That combination of interstate traffic, stricter enforcement in neighboring states, and multi-agency cooperation make Evanston one of the most complicated places in Wyoming for fighting DWUI. It is also one of those places where the details determine the outcome.
Crossing the Utah Line Changes Your Case
No other DWUI pages on this market cover what happens when a driver crosses state lines. For a lot of people arrested in Evanston, this is the most important part of their case.
What Utah’s 0.05% Law Means for Wyoming Charges
Utah adopted a 0.05% BAC limit on December 30, 2018, the lowest in the country. Wyoming’s limit is 0.08%. A driver who blows 0.06% can legally get behind the wheel in Ogden or Salt Lake City. If you cross into Wyoming with that same number, the law that applies changes even though nothing else does. That gap surprises many Utah drivers. They don’t drive differently. They just keep going east.
How the Driver License Compact Works
Wyoming, Utah, Idaho and Colorado all belong to the Driver License Compact, an interstate agreement that treats out-of-state convictions as if they happened at home. A Wyoming DWUI conviction is reported to your home state DMV. Then, Utah, IDaho or Colorado apply their own administrative penalties, including license suspension, on top of what the Wyoming court has done. The conviction is also recorded in the National Driver Registry, where it remains visible for ten years.
This is why an out-of-state DWUI arrest in Evanston requires a Wyoming attorney, not just a call to the DMV in your home state. You have 20 days from the date of the notice to request an administrative hearing, and this clock runs whether you live in Wyoming or not. Drivers in Idaho and Colorado face the same reporting arrangements, just with each state’s own BAC limit and its own penalties when the conviction is brought home.
Wyoming DWUI Penalties by Offense Level
Wyoming’s penalties escalated quickly, and the 2025 legislation added mandatory minimum jail terms that hadn’t existed before. The table below shows the baseline. A child passenger, serious bodily injury to another person, or holding a commercial license with a 0.04% blood alcohol limit can push a case into felony territory or add enhanced penalties even for a first offense. None of these numbers is the ceiling; they’re just the starting point.
| Offense | Jail | Fine | License Suspension | Ignition Interlock |
| First DWUI | Up to 6 months | Up to $750 | 90 days | 6 months if BAC ≥ 0.15% |
| Second DWUI (within 10 yrs) | 7 days – 6 months, mandatory minimum | Court-set | 1 year | 1 year |
| Third DWUI | 30-day mandatory minimum | Court-set | Court-set | 2 years |
| Fourth+ (Felony) | Up to 7 years | Up to $10,000 | Court-set | Lifetime |
Wyoming also makes it harder to negotiate a DWUI down than most states allow. Under W.S. § 31-5-233(j), a prosecutor has to file a written statement in open court explaining the lack of evidence before reducing or dismissing a charge. That single requirement is why early moves in a case, such as challenging the stop, field sobriety tests, and breath test procedure, carry so much weight in Uinta County.
Defense Strategies in Evanston DUI Cases
Not every DUI arrest results in a conviction, and not every breath test result is accurate. The defenses available in a DWUI case depend on the specific facts, but some of the most effective approaches include:
Challenging the traffic stop.
Police need reasonable suspicion to pull you over. If the stop wasn’t legally justified, evidence gathered afterward may be suppressible.
Attacking the breath or blood test.
Breathalyzer machines need to be calibrated and maintained correctly. The officers have to follow specific procedures when administering the test. Blood draws have their own chain of custody requirements. Any interruption in that chain is a problem.
Questioning field sobriety test administration.
Standardized field sobriety tests (SFSTs) are only reliable when administered correctly under the right conditions. Weather, road surface, footwear, and medical conditions can all affect performance in ways unrelated to intoxication.
Examining the officer’s observations.
The officer’s testimony regarding your driving, appearance, and behavior becomes part of the record. Christina Williams understands how those observations are framed in police reports because she spent years reading them from the prosecutor’s side.
What Just Criminal Law Brings to Your Evanston DUI Defense
Most criminal defense attorneys can tell you what the law says. Fewer can tell you how a specific prosecutor in a specific county is likely to approach a case, and what arguments actually move the needle in that courtroom.
Christina L. Williams worked as a prosecutor before founding Just Criminal Law. That experience isn’t just a line on a resume. It means she evaluates every DUI case from the prosecution’s perspective first, identifying the weaknesses in the state’s evidence before they do. Just Criminal Law handles DUI defense throughout Wyoming, with specific experience in Uinta County courts.
The firm is trial-ready. Not every case goes to trial, but having an attorney who is genuinely prepared to take a case to a jury changes how prosecutors engage. It changes the offers they make. It changes the dynamic of the entire case.
