Expert Profiles

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. He is well-trained in accident investigation and reconstruction and has conducted more than 1,000 DUI investigations. Mr. McCann holds certificates in basic, intermediate, and advanced POST (Peace Officer's Standards and Training). Furthermore, the San Francisco Police Department awarded him the highest honor, the Gold Medal of Valor.

Hallee Weingarten

Forensic toxicologist, Halle Weingarten, formerly headed the DUI break alcohol testing program at the Santa Clara County Crime Laboratory. She has trained police officers how to properly use the breath testing devices employed in DUI investigations, and was responsible for maintaining the devices used in Santa Clara County.

She has qualified as an expert in DUI cases in California Superior Courts and her articles have been published in scientific journals. Furthermore, Ms. Weingarten is a lecturer and teacher to other scientists regarding the field of forensic toxicology.

Paul Cavallero

Investigator Paul Cavallero has conducted more than 200 DUI investigations and regularly testifies in court as a witness on behalf of our clients. As a member of our firm for more than 7 years, he is responsible for gathering client discovery, filing and serving client motions in all Bay Area county courthouses, and photographing areas where clients' were stopped by police officers.