As a native of Marin County, Jamie grew up in Corte Madera. He attended Marin Catholic High School, and he received an Associate of Arts degree from College of Marin as well as a Bachelor of Arts degree in Sociology with an emphasis in Criminology from the University of Montana, Missoula.
For more than 23 years, Jamie has dedicated himself to keeping the people of Marin County safe. In 1998, Jamie joined the Tiburon Police Department as a police officer before joining the Marin County Sheriff’s Office in 2000. He steadily worked his way up through the ranks from Deputy to Sergeant to Lieutenant to Captain. In December 2018, Jamie was promoted to Undersheriff — the second in command in the office. Jamie also recently served as the Interim Chief of Police for the Tiburon Police Department from September 2020 to April 2021. Jamie was appointed to Sheriff in July 2022.
Jamie has graduated from the following Police Officer Standards and Training leadership courses: Sherman Block Supervisor Leadership Institute, 2012 P.O.S.T. Executive Development program and the 2015 P.O.S.T. Command College, Class 57.
Jamie currently serves as a board member of the Marin County Public Safety Officers Association for Widows and Orphans. Jamie has led fundraising activities to provide survivor benefits to the families of fallen Marin County public safety officers (police and fire).
Jamie has been married for more than 21 years to his wife, Ronelle. They are the proud parents of two adult children – Julia and Joseph. Jamie has spent many years volunteering and coaching youth athletics in Marin County, including CYO basketball for St. Isabella’s, Las Gallinas Valley Little League, San Rafael Girls Softball and Smackers softball. Jamie is a member of the Italian Athletic Club of Marin.