You may refuse to take a chemical test (breathalyzer, blood test, or urine test) during a DUI or DWI stop, but almost every state has a so-called "implied consent" law that says a refusal can result in suspension of your driver's license from anywhere between three to 12 months. (This is true even if you're eventually found not guilty of the drunk driving/driving under the influence/driving while intoxicated charge.) Further, if your drunk driving case goes to trial, the prosecutor can tell the jury that you wouldn't take the test, which may lead the jury members to conclude that you refused because you were, in fact, intoxicated or under the influence of drugs.
DUI & DWI FAQs
Do You Need a Lawyer for a DUI Charge?
Should You Plead Guilty to a DUI?
Dealing with a DUI/DWI Charge
DUI & DWI Penalties in Your State
Defenses to a DUI/DWI Charge
Consequences of a DUI or DWI Conviction
Will I got to jail for a DUI conviction?
Will I lose my license for a DUI?
How long will a DUI stay on my record?
Can I get out of a DUI conviction by plea bargaining for a wet reckless?
Is a DUI a felony?