Dedicated DUI Defense Attorney Backed by Experienced Experts

Expert Profiles

Accident Investigation and Reconstruction Expert Alan McCannAccident Investigation and Reconstruction Expert Alan McCann

Alan McCann was a member of the San Francisco Police Department for 33 years and has more than a decade's worth of experience as an investigator. Trained in accident investigation and reconstruction, Mr. McCann has conducted over a 1,000 driving under the influence of alcohol or drugs investigations and made over 600 DUI arrests. Mr. McCann holds basic, intermediate, and advanced POST (Peace Officer's Standards and Training) Certificates. He was also awarded the San Francisco Police Department's highest honor, the Gold Medal of Valor.

Consultant in Forensic Toxicology Halle Weingarten

Comprehensive case review including evaluation of the role of alcohol and drugs in case specific context, eConsultant in Forensic Toxicology Halle Weingartenffects and metabolism of these substances, assessment of the reliability of alcohol and drug test procedures, regulatory compliance, evidence handling procedures, and quality assurance. Expert testimony in criminal, administrative, and civil proceedings. Assist laboratories in setting up analytical methods that meet regulatory and legal requirements and in training laboratory staff and law enforcement officers.

Certified Forensic Toxicologist, Diplomate, American Board of Forensic Toxicology Forensic Alcohol Supervisor, California Department of Health Services Clinical Toxicologist Technologist, California Department of Health Services Intoxilyzer 5000, Operation and Maintenance, CMI, Inc., Breath Alcohol Technician Instructor (certified to train trainers and technicians), CMI, Inc. Breath Alcohol Technician, CMI, Inc. (Intoxilyzer 200, 400, 5000) Breath Alcohol Technician Trainer, MedExpress Toxicology, Inc. Breath Alcohol Technician Trainer, Intoximeters, Inc.

Certified Professional Collector Trainer, Drug and Alcohol Testing Industry Association.
Certificate of Completion of Standardized Field Sobriety Test (SFST) Training, 2007.

Investigaor Paul Cavallero

Investigator Paul Cavallero has conducted over 200 DUI investigations and regularlyInvestigator Paul Cavallero testifies in court as a witness on behalf of our clients. As a member of our firm for over 3 ½ years, he is responsible for gathering client discovery, delivering client motions to all Bay Area county courthouses, and photographing arrest locations.

Marin County DUI lawyer Robert Tayac represents people arrested in the following communities:

Belvedere, Bolinas, Corte Madera, Dillon Beach, Dogtown, Fairfax, Greenbrae, Inverness, Inverness Park, Kentfield, Lagunitas-Forest Knolls, Larkspur, Marin City, Marshall, Mill Valley, Muir Beach, Nicasio, Novato, Olema, Point Reyes Station, Ross, San Anselmo, San Geronimo, San Rafael, Sausalito, Stinson Beach, Tiburon, Tomales, Woodacre.

California DUI and Criminal Law Resources

Contact the Law Office of Robert Tayac for your free 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

  • “It is so reassuring to meet a person/team who is expert at what they do.”

    D.S.

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

    R.R., Attorney at Law

  • “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.”

    S.M.

  • “I can't imagine things going any less painlessly than you made it for me.”

    J.S.

  • “I do recognize that you achieved for me an outcome exceeding what is typical for Santa Clara County.”

    E.S.

Contact Us Today

Your Strong Defense Starts with a Case Evaluation
  • Please enter your name.
  • This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please make a selection.
  • Please enter a message.