DUI Arrest Procedures and Potential Violations of Defendant Rights

Facing an arrest for driving under the influence can turn your life upside down in a matter of minutes. The flashing lights, the flashing interrogation lights at the station, and the sudden realization that your freedom and driving privileges are on the line bring a wave of fear and uncertainty. 

It is completely normal to feel panicked and alone when you are sitting in the back of a police cruiser, wondering how this single moment will affect your family, your job, and your future. 

You did not plan for this, and the weight of the situation is heavy on your shoulders. Fortunately, you do not have to carry this burden by yourself, because I am here to stand beside you and fight for your rights every step of the way. 

When you trust me at the Law Office of S. Neal Ziliak to handle your case, I fight tirelessly for clients throughout Indianapolis, Noblesville, Hamilton County, Westfield, Carmel, and Fishers, Indiana. Contact me for the dedicated representation you need.

The Initial Traffic Stop and Lawful Basis

Every legitimate DUI investigation starts long before any breathalyzer or field sobriety test. A police officer must have reasonable suspicion of a traffic violation or criminal activity to pull your vehicle over in the first place. 

If an officer stops your car without a valid reason, they violate your constitutional rights under the Fourth Amendment. As a dedicated DUI lawyer, I carefully examine the dashcam footage, officer notes, and dispatch logs to determine whether the initial stop was lawful.

Stopping a motorist on a mere hunch or generalized suspicion is illegal, and identifying this violation is often the first step in dismantling the prosecution's case against you. If the officer lacked probable cause for the traffic stop, I will file motions to throw out the illegally obtained evidence.

Common Field Sobriety Test Errors

During a traffic stop, officers frequently ask drivers to step out of the vehicle and perform standardized field sobriety tests. These tests are notoriously unreliable and subjective, yet police rely on them to build probable cause for an arrest. 

Even completely sober individuals often struggle with these physical coordination tasks due to fatigue, medical conditions, uneven pavement, or nervousness. Police officers must administer and grade these physical assessments in strict accordance with National Highway Traffic Safety Administration guidelines.

• Horizontal gaze nystagmus test: Officers look for involuntary eye tracking issues, but environmental distractions, lighting, and medical conditions can easily produce false positives.

• Walk and turn test: Drivers must walk heel-to-toe in a straight line, which presents massive balance challenges for anyone with joint injuries, inner ear problems, or age-related mobility issues.

• One-leg stand test: Requiring a driver to stand on one foot while counting aloud is heavily impacted by anxiety, footwear choices, and physical exhaustion.

These standardized checks rarely provide an accurate measure of impairment, yet prosecutors present them as infallible proof of guilt. An experienced lawyer knows how to cross-examine arresting officers regarding their failure to follow proper testing procedures. 

Challenging these flawed assessments weakens the state's argument and protects your rights. Reach out to us if you suspect your field sobriety tests were administered improperly.

Chemical Testing and Breathalyzer Accuracy

Chemical testing forms the backbone of many drunk driving prosecutions, but breathalyzers and blood draws are far from infallible. Breath test machines require rigorous calibration, regular maintenance, and proper operator certification to yield accurate blood alcohol concentration readings. 

If a machine malfunctions or if an officer fails to observe the required waiting period before the test, the resulting numbers become legally unreliable.

• Calibration failures: Breathalyzer devices drift out of calibration over time and require frequent maintenance checks that police departments occasionally neglect.

• Medical interference: Certain dietary factors, acid reflux, diabetes, and dental work can trap alcohol in the mouth and cause falsely elevated breath test results.

• Improper observation periods: Officers must continuously observe a driver for a mandatory 15 to 20 minutes prior to a breath test to ensure the person does not vomit, burp, or regurgitate.

Contesting chemical test evidence requires a deep understanding of scientific principles and machine mechanics. When a breathalyzer or blood test reading forms the core of the state's case, challenging the test's validity is vital. 

As your DUI lawyer, I scrutinize maintenance logs, calibration records, and operator credentials to uncover any errors that invalidate the state's scientific evidence.

Protecting Your Constitutional Rights

Law enforcement officers must strictly follow constitutional safeguards at every stage of an investigation. If an officer fails to read your Miranda rights before a custodial interrogation, any incriminating statements you made can potentially be thrown out of court.

Violations of your constitutional rights can completely change the trajectory of your case. Police misconduct, improper search and seizure, or denial of counsel during critical stages of the arrest process provide powerful grounds for defense. 

Working with a knowledgeable DUI lawyer ensures the court does not overlook these violations. I thoroughly investigate every detail of your arrest to hold law enforcement accountable when they overstep their legal boundaries.

Finding Relief and Moving Forward With a DUI Lawyer

Dealing with the aftermath of a drunk driving arrest brings immense stress, but having the right advocate by your side changes everything. As a skilled DUI lawyer, I evaluate every aspect of your arrest, from the initial traffic stop to the final chemical test, to uncover police errors and constitutional violations that protect your future.

At the Law Office of S. Neal Ziliak, I provide the aggressive defense you deserve when you are facing criminal charges in Indianapolis, Noblesville, Hamilton County, Westfield, Carmel, and Fishers, Indiana. 

You do not have to face the court system alone when you have a dedicated DUI lawyer fighting for the best possible outcome in your case. Reach out to me today to schedule your consultation and take the first step toward reclaiming your peace of mind.