Facing a DUI investigation in Scottsdale can be intimidating, especially if you’re unfamiliar with Arizona’s legal system. At Guardian Law, we believe knowledge is power. Understanding the steps involved in a Scottsdale DUI investigation can help you protect your rights and make informed decisions about your defense.
What Triggers a DUI Investigation in Scottsdale?
Most DUI investigations in Scottsdale begin when a police officer observes what appears to be impaired driving or a traffic violation. Scottsdale police frequently conduct DUI enforcement in areas with high nightlife activity, at DUI checkpoints, or after collisions.
Common Triggers for DUI Stops
- Swerving or erratic driving
- Speeding or unusually slow speeds
- Running stop signs or red lights
- Failing to maintain a lane
- Equipment violations (broken taillights, etc.)
- DUI checkpoints or roadblocks
The DUI Investigation Process in Scottsdale
Once an officer stops your vehicle, the investigation unfolds in several key steps:
1. Initial Contact
The officer will approach your vehicle and look for signs of impairment. These may include:
- Smell of alcohol or drugs
- Slurred speech
- Bloodshot or watery eyes
- Open containers in the vehicle
- Difficulty retrieving your license or registration
2. Questioning
Police will ask about your recent activities, alcohol consumption, and destination. Remember: You have the right to remain silent and do not have to answer questions about alcohol or drug use.
3. Field Sobriety Tests
If the officer suspects impairment, you’ll likely be asked to perform field sobriety tests (FSTs) such as:
- Walk-and-turn
- One-leg stand
- Horizontal gaze nystagmus (eye movement)
Note: Field sobriety tests are voluntary in Arizona. You may politely refuse to take them, although refusal may lead to arrest if other evidence supports probable cause.
4. Breath, Blood, or Urine Testing
Arizona’s implied consent law (A.R.S. § 28-1321) requires you to submit to chemical testing if you are lawfully arrested for DUI. Refusing the test results in an automatic one-year license suspension, even if you’re never charged.
- Breathalyzer: Administered roadside or at the station
- Blood Test: Typically performed at a police station or hospital
- Urine Test: Used less frequently, usually for suspected drug impairment
5. Arrest Decision
Based on the totality of evidence—driving behavior, appearance, field tests, and chemical test results—the officer decides whether to arrest you for DUI.
6. Post-Arrest Procedures
After an arrest, police will book you at a local station. You may spend several hours in custody. Police will collect additional evidence, and you’ll receive paperwork about your charges and license suspension.
What Are Your Rights During a Scottsdale DUI Investigation?
- You have the right to remain silent.
- You have the right to refuse field sobriety tests.
- You must provide your name, driver’s license, and registration.
- You have the right to consult a criminal defense attorney before answering questions.
How Guardian Law Challenges DUI Investigations
Our experienced DUI defense team scrutinizes every aspect of the investigation, including:
- Whether police had reasonable suspicion to stop your vehicle
- The legality of the arrest and accuracy of field sobriety and chemical tests
- Whether the officer properly advised you of your rights
- Chain of custody for blood and urine samples
- Police procedures during the investigation and arrest
Scottsdale DUI Investigation – FAQ
Do I have to answer the officer’s questions during a DUI stop?
No, you do not have to answer questions about where you’ve been or what you’ve consumed. Politely assert your right to remain silent.
Can I refuse a breath or blood test?
You can refuse, but Arizona’s implied consent law will suspend your license for one year. This penalty applies even if you are not convicted.
What happens if I fail a field sobriety test?
Failing or refusing a field sobriety test often leads to arrest, but the prosecution still must prove their case in court.
Do I need a lawyer after a DUI arrest?
Absolutely. DUI laws in Arizona are complex and strict. Early legal representation gives you the best chance for a favorable outcome.
Protect Your Rights – Contact Guardian Law
A Scottsdale DUI investigation can move quickly and have serious consequences. Protect your future by working with experienced, aggressive defense counsel. Guardian Law will investigate every detail, challenge weak evidence, and fight for your best result.
Call Guardian Law today at (602) 888-8020 for a confidential consultation.