Know Your Limits
Know Your Rights
In Utah, the legal limit is among the strictest in the nation. But knowing where the line is drawn is only half of it. Just as important — and far more powerful when you need it — is knowing the rights that stand between you and a conviction.
Call (801) 645-5008 — Free ConsultationThe United States Constitution, the Utah Constitution, and the Utah Code all guarantee specific rights to every person accused of a crime — including DUI. These are not technicalities. They are the bedrock protections that hold the government accountable and ensure that no one is convicted without due process of law.
Every person stopped, arrested, or charged with DUI in Utah has rights. Those rights exist from the moment of the stop — not just at trial. Understanding them is not just an academic exercise. It is the foundation of every defense strategy Glen W. Neeley builds for his clients.
Too many people surrender their rights simply because they did not know they had them. They answer every question, agree to every test, and say things that become the core of the prosecution’s case against them. Knowledge is your first line of defense. This page exists to make sure you walk into this situation informed.
Your Constitutional and Statutory Rights in a Utah DUI Case
You have the right to enter a plea of not guilty and to have your case decided at trial. You may choose between two types of trial:
- Jury Trial: Six members of your community — not a single judge — must unanimously agree on your guilt. This is a significant advantage: all six must be convinced beyond a reasonable doubt.
- Bench Trial: The judge alone decides the facts and applies the law. Strategically appropriate in certain cases depending on the evidence.
You have the right to be represented by an attorney throughout the entire criminal process — not just at trial. This includes every hearing, every pretrial motion, every DLD proceeding, and every interaction where your rights and freedom are on the line.
An experienced DUI defense attorney is not a luxury. The prosecution has trained officers, forensic scientists, and prosecutors all working to build a case against you. You deserve equally committed representation on your side.
- Your attorney has the right to be present at all critical proceedings
- Your attorney can object to unlawful evidence, challenge procedures, and cross-examine witnesses
- No plea deal should ever be entered without counsel reviewing it first
If you do not have the financial means to hire an attorney, you have the right to ask the court to appoint one for you at no cost. This right is guaranteed under the Sixth Amendment as interpreted by the U.S. Supreme Court.
To request a court-appointed attorney, you must demonstrate financial need. The judge will review your income and circumstances. Never proceed without an attorney simply because you believe you cannot afford one — ask the court first.
From the moment you are arrested and at every point through the conclusion of your trial, you are presumed innocent. The prosecution bears the entire burden of proving every element of the charge against you. You do not have to prove anything.
That burden is high: beyond a reasonable doubt — the highest standard of proof in the American legal system. A DUI arrest is not a DUI conviction. A failed breath test is not a conviction. The government must prove its case. Until it does, the law says you are innocent.
The prosecution cannot simply submit a police report and win. Every witness who testifies against you must appear in person — and your attorney has the constitutional right to cross-examine them fully.
This is one of the most powerful tools in DUI defense. Officers often handle dozens of stops and may have inconsistent recollections. Lab technicians must be qualified and their procedures challenged. The Confrontation Clause forces the government to put its witnesses on the stand — where skilled cross-examination can expose weaknesses, contradictions, and failures.
- The arresting officer must testify — and can be challenged on the basis of the stop, the field tests, and the arrest procedure
- Lab analysts who tested your blood must testify about their methods and certifications
- Inconsistent statements and failure to recollect are two of the most powerful tools available on cross-examination
You are not limited to attacking the prosecution’s evidence. You have an affirmative right to present evidence in your own defense — including witnesses who support your account, expert testimony challenging the breath or blood test results, and any physical evidence favorable to your case.
If a witness who has relevant information is unwilling to testify voluntarily, your attorney can compel their attendance through a subpoena — a legal order requiring them to appear in court. The government does not have a monopoly on the truth. Your defense can call and question its own witnesses.
- Expert witnesses on breath test science, field sobriety testing, or blood analysis can be retained for your defense
- Surveillance video, bar receipts, and witness accounts of your sobriety are all potential defense evidence
- Subpoena power means reluctant witnesses can be compelled — your attorney will advise when this is strategic
You cannot be compelled to testify against yourself — at any stage of a criminal proceeding. This right applies at the roadside, at the station, and in the courtroom. If you choose not to testify at trial, the prosecution may not comment on your silence, and the jury may not draw any negative inference from it.
This is one of the most critical rights in criminal law — and one of the most frequently waived without understanding the consequence. Everything you say to an officer before, during, and after your arrest can be used against you.
- At the roadside: provide your name, address, and date of birth only. Politely decline to answer other questions.
- At arrest: invoke your right to silence and ask for an attorney. Then stop talking.
- At trial: the decision to testify is a strategic one made with your attorney. Your silence cannot be used against you.
If the trial court finds you guilty, your case is not necessarily over. You have the right to appeal the judgment to a higher court, which will review the proceedings for legal errors that may have affected the outcome.
An appeal is not a new trial — it is a review of whether the law was correctly applied. Grounds for appeal in DUI cases can include improper admission of evidence, incorrect jury instructions, constitutional violations, or prosecutorial misconduct.
- Appeals in Utah go to the Utah Court of Appeals, and in significant cases, to the Utah Supreme Court
- Strict deadlines apply — generally 30 days from the entry of judgment to file a notice of appeal
- Preserving issues for appeal begins at trial — another reason skilled trial representation matters from day one
Know Your Limits: Utah BAC Thresholds
Utah has the lowest legal BAC limit in the nation at .05% — significantly lower than the .08% standard in most U.S. states. Understanding where the legal lines are drawn is critical — not so you can drive up to the limit, but so you understand the stakes and the science behind the charges against you.
The per se DUI limit for drivers 21 and older in Utah. The strictest BAC limit in the United States. Most other states set this at .08%.
Half the standard limit. A DUI conviction in any vehicle triggers at least a 1-year CDL disqualification under federal regulations.
You can be charged with Driving While Ability Impaired even below .05% if an officer believes your driving ability is affected to any degree.
Utah’s “Not a Drop” law: any detectable amount of alcohol in a driver under 21 results in automatic license suspension. There is no safe amount.
Factors That Affect Your BAC — And Your Defense
BAC is not simply a function of how much you drank. Dozens of variables affect what a breath or blood test will read — and understanding them is the foundation of challenging the prosecution’s evidence.
Body Weight & Composition
A 120-lb person and a 220-lb person will have dramatically different BAC readings from the same number of drinks. Body water content is the key variable — not just weight.
Food Consumption
Alcohol is absorbed more slowly when food is present in the stomach. Drinking on an empty stomach significantly accelerates the rate at which BAC rises.
Time & Rate of Consumption
Your body eliminates alcohol at approximately .015% per hour. When you drank, and over how long, directly affects your BAC at the time of driving.
Breath Test Margin of Error
Breathalyzer devices carry a known margin of error — typically ±.01% or more. At a limit of .05%, this margin is highly significant and challengeable.
Medical Conditions
GERD, acid reflux, diabetes, and certain diets (low-carb, ketogenic) can cause false elevated breath test readings due to mouth alcohol or acetone production.
Rising BAC Defense
If you drove just before your BAC peaked, your BAC at the time of driving may have been lower than your BAC at the time of testing. This retrograde extrapolation is a legitimate and frequently used defense.
Knowledge Is a Defense.
Experience Is a Weapon.
Knowing your rights is essential. But rights unexercised — or exercised without skill — don’t protect you. The constitutional guarantees on this page are only as powerful as the attorney who knows how to enforce them in a Utah courtroom.
Glen W. Neeley has spent over 25 years turning these rights into real outcomes for real people facing DUI charges across Utah. He knows which rights apply to your specific facts, which violations are worth fighting, and which arguments actually move judges and juries.
Your rights are guaranteed. Your outcome is not — unless someone fights for it.
You Know Your Rights.
Now Exercise Them.
Glen W. Neeley is available 24 hours a day, 7 days a week. Free confidential consultation — no obligation. Call now before evidence disappears and deadlines pass.
(801) 645-5008 Schedule a Free ConsultationAvailable 24/7 · Ogden & Salt Lake City · Statewide Utah