Police Mistakes That Could Get Your DUI Dismissed
Nobody wants to be charged with a DUI.
But after more than 30 years defending DUI cases, I can tell you something important:
Police officers make mistakes.
And when those mistakes happen, they can seriously damage the prosecution’s case. In some situations, the mistake is so significant that the DUI charge may be reduced — or even dismissed completely.
That is one reason DUI defense is often far more complicated than people realize.
Experienced DUI attorneys in Orlando can examine traffic-stop evidence, testing procedures, and officer reports for mistakes that may weaken the prosecution’s case.
Why Police Mistakes Matter in DUI Cases
Every DUI case depends on the government following constitutional rules and proper procedures.
If officers violate those rules, defense attorneys can challenge the evidence gathered during the investigation.
The more legal problems a DUI case has, the stronger the defense becomes.
Two of the biggest issues appear again and again in DUI cases:
- Illegal traffic stops
- Improper field sobriety tests
Both problems can create major weaknesses for prosecutors.
Illegal Traffic Stops Can Destroy a DUI Case
One of the most common DUI defense arguments involves the initial traffic stop itself.
Police officers cannot simply pull drivers over because they “have a feeling” someone may be impaired. Officers must have a lawful reason to stop the vehicle.
That legal standard matters enormously.
Many DUI stops happen late at night after bars close, when officers are actively looking for impaired drivers. Officers often search for small traffic violations to justify a stop.
Sometimes those stops hold up legally.
Sometimes they do not.
When a Traffic Stop Becomes Invalid
Florida traffic laws can become surprisingly technical.
For example, officers often stop drivers for failing to use a turn signal while changing lanes.
But under certain circumstances, failing to signal may not justify a stop if no other traffic was affected or endangered.
That creates an important legal issue.
If the officer lacked a valid legal reason to stop the vehicle, defense attorneys may file a motion to suppress evidence. That motion argues the stop violated constitutional protections.
If a judge agrees, the DUI evidence collected afterward may become inadmissible.
In some cases, the entire DUI charge falls apart.
Problems With Field Sobriety Tests
Another major issue in DUI cases involves field sobriety exercises.
These tests are supposed to help officers determine whether a driver is impaired. However, officers do not always administer them correctly.
Many things can go wrong during field sobriety testing, including:
- Improper instructions
- Poor testing conditions
- Uneven surfaces or unsafe locations
- Incorrect interpretation of results
- Failure to ask proper medical or physical qualification questions
These issues appear more often than people think.
Why Faulty Sobriety Tests Matter
Field sobriety tests frequently become some of the prosecution’s strongest evidence in a DUI case.
Prosecutors often rely heavily on officer observations about balance, coordination, and performance during testing.
When those tests are flawed, defense attorneys may challenge whether the results should even be presented in court.
If key field sobriety evidence gets excluded, the prosecution’s case can weaken significantly.
Sometimes that creates opportunities for reduced charges, better plea negotiations, or dismissal arguments.
DUI Cases Are More Defensible Than People Think
A lot of people assume DUI cases are automatic convictions once an arrest happens.
That simply is not true.
DUI investigations involve constitutional protections, police procedures, body camera footage, testing standards, and detailed legal analysis. Small mistakes by officers can create major opportunities for the defense.
That is why experienced DUI attorneys spend so much time reviewing every detail of the stop and investigation.
Final Thought
Police officers are human, and human beings make mistakes.
In DUI cases, those mistakes can sometimes change the entire direction of the case.
Illegal traffic stops and improperly administered field sobriety tests are two of the most common problems defense attorneys look for because they may lead to suppressed evidence, reduced charges, or even dismissed cases.
That is why every detail matters in a DUI investigation.
About John Guidry II
John Guidry II is a seasoned criminal defense attorney and founder of the Law Firm of John P. Guidry II, P.A., located in downtown Orlando next to the Orange County Courthouse, where he has practiced for over 30 years. With more than three decades of experience defending clients throughout Central Florida since 1993, Guidry has successfully defended thousands of cases in Orange, Seminole, Osceola, Brevard, Lake, and Volusia counties. He has built a reputation for his strategic approach to criminal defense, focusing on pretrial motions and case dismissals rather than jury trials.
John Guidry earned both his Juris Doctorate and Master of Business Administration from St. Louis University in 1993. He is a member of the Florida Bar and the Florida Association of Criminal Defense Lawyers. His practice encompasses the full spectrum of Florida state criminal charges, with a particular emphasis on achieving favorable outcomes through thorough pretrial preparation and motion practice.
Beyond the courtroom, Guidry is a prolific legal educator who has authored over 400 articles on criminal defense topics. He shares his legal expertise through his popular YouTube channel, Instagram, and TikTok accounts, where he has built a substantial following of people eager to learn about the law. His educational content breaks down complex legal concepts into accessible information for the general public.
When not practicing law, Guidry enjoys tennis and pickleball, and loves to travel. Drawing from his background as a former recording studio owner and music video producer in the Orlando area, he brings a creative perspective to his legal practice and continues to apply his passion for video production to his educational content.