Challenging DUI Evidence

We Will Defend Your Rights & Protect Your Future

Challenging DUI Evidence: Murrieta DUI Lawyer

Arrested and charged with DUI? Let us review the evidence.

Many people who are arrested and charged with a DUI offense have never had a run-in with the law, and are naturally very concerned after a DUI arrest. Many choose to just plead guilty, take the penalties, and hope it never happens again. In fact, many cases have errors, and could be successfully defended.

At our firm, the Law Office of Nicolai Cocis, we have extensive experience in DUI defense, and we are well aware of the types of evidence that could be challenged. We should review your case information before you file a plea. You may be able to avoid conviction, or other benefit.

The Police Stop

When law enforcement pulls you over, they must have good reason to do so. You are protected from being stopped without probable cause, under the U.S. Constitution. You also cannot be stopped due to any type of racial profiling. You must have committed a driving offense, or be operating your vehicle in a manner that indicates intoxication, such as weaving, wrong way driving, speeding or other conduct.

There are many cases in which the evidence of intoxication was sketchy at best, and no driving infraction had occurred. If this is your situation, it may be possible to get the evidence suppressed, leading to a dismissal. We are ready to hear your side of the story.

Field Sobriety Tests

The police are intimidating. Many people don't realize that you are not required to perform field sobriety tests when asked. They try, and then fail. The purpose of field sobriety tests is to gain more evidence of intoxication. The tests are very subjective, and even under perfect conditions, correctly administered, the best of the tests (horizontal gaze nystagmus) has been found to be only 77% accurate. That means that almost ΒΌ of those who are believed to be over the limit are not. We need to review the administration of the tests, the conditions under which they were administered, and all other data to help in your defense.

Breath Test Evidence

The main evidence in a DUI charge is the breathalyzer results. There are various problems with breath testing units, particularly those used at the roadside. The breath test must be administered correctly for the reading to be valid.

Testing units can be improperly maintained or calibrated, or a certain unit may have had a history of errors. We seek out every detail about the test administration, the training of the officer in breath testing, the unit itself, and can call upon expert witnesses to bring forward evidence about the science behind the unit.

Call our firm today for more information about challenging DUI evidence. 


Real Cases. Real Results.

Explore Our Success Stories

  • Illegal Evidence Dismissed By Judge: Private School Wins Major Victory Against Unreasonable Search by Cal/OSHA
  • Jury Trial Regarding Federal Conspiracy to Obstruct U.S. Congress
  • 23 of 24 Felony Counts Dismissed: Client sentenced to probation and credit for time served in an auto-theft case worth $1.7 million
  • Charges reduced: Mortgage and Real Estate Fraud Valued in Excess of $1 Million Resulted in Probation and One Year of Home Confinement
  • Charges Reduced: Client Charged with Accessory to Murder after Shooting at Busy Restaurant Resulted in Probation and Jail Time. Avoided Lengthy Prison Time.
  • Substantial Reduction of Sentence: FBI Arrested Client for Involvement in Events on January 6th at U.S. Capitol in Washington D.C.

Begin Building Your Defense

Do not hesitate to contact us by calling (951) 666-2600 or filling out the form below. We review your case for free to determine the best course of action.

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