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The Criminal Case

San Mateo County Hall of Justice After a person has been arrested for driving under the influence (DUI) in San Mateo, he/she will have to fight two cases: a criminal case and a DMV case. During the DMV case, the person will fight the terms of his/her license suspension. During the criminal case, the person will defend themselves against his/her DUI charges.

The criminal case will determine if the person will have to spend time in jail, pay monetary fines, or attend a drug and alcohol treatment program. Because so many important decisions depend upon the outcome of the person's criminal case, it is in the person's best interest to retain the services of a reputable San Mateo DUI attorney.

Throughout the criminal case, the person being charged with a crime is called the defendant. At the time of the case, the prosecution will present evidence against the defendant in an attempt to get a conviction. The evidence will typically include the police report, testimony from the arresting officer, and the defendant's blood alcohol and field sobriety test results. After the prosecution presents the incriminating evidence, it is up to the defendant and his/her attorney to argue against it. At this time, the defendant can present his/her side of the story, present case errors, and challenge his/her test results.

As the criminal case comes to an end, the judge will carefully consider all evidence, testimonies, and conditions surrounding the arrest. California has strict DUI statutes that the judge must take into consideration when rendering a decision. The judge will also consider any aggravating circumstances. Aggravating circumstances may include: driver refusal to take the BAC test, BAC results of 0.20% or higher, having a minor under age 14 in the vehicle, and/or DUI convictions. In cases where there are aggravating circumstances, DUI sentences may be enhanced.

If the defendant is found guilty of DUI, he/she faces a variety of serious legal punishments. These punishments may include: jail time, fines, community service, probation, DUI school, and license suspension. In some cases, the person's vehicle may be impounded as well.

San Mateo DUI Defense Attorney

The Law Office of Robert Tayac has helped countless clients fight their San Mateo DUI charges. With years of trial and DUI litigation experience, Attorney Robert Tayac has the skill and legal expertise it takes to successfully contest his clients' DUI charges. Whether your are a first time offender or a multiple DUI offender, you can be assured that Mr. Tayac will put every effort into helping you avoid a criminal conviction.

Any person who drives under the influence of drugs and/or alcohol places his/her life and others in great danger. For this reason, California has adopted strict DUI laws and legal penalties. If a person is convicted of driving under the influence in San Mateo County, he/she faces life-altering legal punishments such as jail time, fines, probation, license suspension, and vehicle impoundment. When you are charged with DUI, you need the counsel of an experienced San Mateo attorney to increase your chances of winning in court.

Contact the Law Office of Robert Tayac for your free DUI case evaluation!

Why Choose Our Firm?

Attorney Robert Tayac Puts a Long, Decorated Career to Work for You
  • Puts Over 20 Years of Experience Toward Your Case

  • Specialized Education in DUI Defense

  • Has Trained Other Attorneys in San Francisco

  • Former San Francisco Police Officer & Police Inspector

  • Certified by the SFPD on the Intoxilyzer 5000 Testing Device

  • Co-Authored the 4th Edition of California Drunk Driving Defense

  • Boasts a Successful Record Achieving the Best Result for His Clients

  • Takes the Time to Understand You & Your Case

Client Testimonials

  • “His in depth knowledge and expertise within his field, along with deep and lasting relationships with the District Attorneys office and everyone involved are without a doubt unmatched.”


  • “These clients have called me to thank me for referring them to the Law Offices of Robert Tayac.”

    R.R., Attorney at Law

  • “Without Mr Tayac's knowledge and drive to succeed, I most likely would not be able to write this review today.”


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