Executive Staff

Sheriff Robert T. Doyle

2020 Rdoyle

Email Sheriff Robert T. Doyle

Sheriff Doyle

As a native of California, Sheriff Robert T. Doyle was born in San Francisco and raised in Daly City.  Sheriff Doyle and his wife Linda reside in Novato, where Sheriff Doyle has been a resident for 49 years.  He has an adult daughter, Caitlin.  Sheriff Doyle served in the United States Army from 1966 to 1969 in California, Oklahoma, Germany, and Vietnam.  He attended California State University Sonoma where he received a Bachelor of Arts degree with an emphasis in Criminal Justice.

Sheriff Doyle joined the Marin County Sheriff’s Office in November 1969. Since his hiring, Sheriff Doyle has served in the Patrol, Custody, and Court Divisions. He has worked as a supervisor in the Patrol Division the Custody Division. Sheriff Doyle has commanded both the Southern Marin Patrol Station and the Marin County Jail.  Between 1969 and 1989, Sheriff Doyle has served in multiple Divisions achieving every Merit System classification (Deputy Sheriff, Sergeant, Lieutenant, and Captain). In December 1988, he was appointed Undersheriff.  In March 1996, then as Undersheriff Doyle, he was appointed as the Sheriff of Marin County.  Sheriff Doyle was re-elected in June 1998, March 2002, June 2006 and June 2010.  In June 2010, he was re-elected Sheriff-Coroner, and again in June 2014, and June 2018.

As a parent and community partner, Sheriff Doyle has served as the Treasurer of the Novato Youth Soccer Association. He is a member of several law enforcement professional associations.  While serving as the Sheriff of Marin County, Sheriff Doyle has been participating in the following list of associations:

  • President California State Sheriffs’ Association 2004/2005
  • Two Term President of the Marin County Police Chiefs’ Association
  • Officer of the California State Sheriffs’ Association
  • Chair, California State Sheriffs’ Legislative Committee
  • Appointed by Governor Schwarzenegger as member of the Commission on Peace Officer Standards and Training
  • Appointed by Governor Wilson to represent the State Sheriffs on the State Task Force on Court Facilities
  • Co-Chair Marin County School/Law Enforcement Partnership
  • Member of a variety of Law Enforcement Committees
  • Past Treasurer of Novato Youth Soccer Association
  • Executive Committee, Fight Crime/Invest in Kids California


Undersheriff Jamie Scardina

2020 Jscardina

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Undersheriff Scardina

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.

As Undersheriff, Jamie manages the day-to-day operations of the office, including managing a budget of approximately $75 million and over 300 employees.

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. 


Captain Scott Harrington

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Administrative and Support Services Commander

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Scott Harrington

As a native of the Bay Area, Scott grew up in San Francisco before moving to Sonoma County, where he and his wife, Robyn, chose to raise their four children, Taylor, Hunter, Landon and Scarlett. Scott attended California State University Sacramento where he received a Bachelor of Sciences degree with an emphasis in Criminal Justice.

Scott joined the Marin County Sheriff’s Office in December 2002. Since his hiring, Scott has served in the Patrol and Custody Divisions in addition to working as a narcotics detective with the Marin County Major Crimes Task Force. He has worked as a supervisor in the Patrol Division, the Custody Division, the Professional Standards Unit and the Court Services Division. Between 2002 and 2021, Scott has served in multiple Divisions achieving every Merit System classification (Deputy Sheriff, Sergeant, Lieutenant, and Captain). In March 2016 Scott was selected to be the Station Commander for the Sheriff’s Office’s Southern Marin Station.

In September 2019, Scott was promoted to the rank of Captain. Since the promotion, Captain Harrington has been commanding the Administrative and Support Services Bureau which includes the Marin County Communications Dispatch Center, the Coroners Division, the Fiscal Services Division, the Technology Services Unit, the Documentary Services Unit, the Professional Standards Unit, and the social media team.

As a parent and community partner, Scott has coached through the Sonoma/Marin Boys & Girls Club (basketball), the Petaluma Girls Softball Association, the Petaluma American Little League, and the Petaluma Youth Soccer League. Scott is a member of several law enforcement professional associations.

Captain Harrington has graduated from the following Police Officer Standards and Training leadership courses: Sherman Block Supervisor Leadership Institute (2012) and 2019 P.O.S.T. Executive Development program.


Captain Craig Scardina

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Field Services Commander

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Craig Scardina

As a native of California, Craig grew up in Corte Madera and graduated from Marin Catholic High School.  Craig and his wife, Angela, raised their two daughters, Brittney and Isabella, and son, Anthony in Rohnert Park. Craig attended California State University Fresno where he received a Bachelor of Sciences degree with an emphasis in Criminology.

Craig joined the Marin County Sheriff’s Office in September 1995. Since his hiring, Craig has served in the Patrol and Custody Divisions in addition to working as a narcotics detective with the Marin County Major Crimes Task Force. He has worked as a supervisor in the Patrol Division, the Custody Division, the Investigations Division,  and the Professional Standards Unit. Between 1995 and 2018, Craig has served in multiple Divisions achieving every Merit System classification (Deputy Sheriff, Sergeant, Lieutenant, and Captain). In March 2016 Craig was selected to be the Commander for the Sheriff’s Office’s Professional Standards Unit.

In December 2018, Craig was promoted to the rank of Captain. Since the promotion, he has been commanding the Field Services Bureau which includes the Patrol and Investigations Divisions.

As a parent and community partner, Craig has coached for the Rohnert Park Warriors Youth Football Organization, the Rohnert Park Girls Softball Association, Rohnert Park Cal Ripken Baseball, and St. Elizabeth CYO Basketball. Craig is also a volunteer at Rancho Cotate High School. He is a member of several law enforcement professional associations.

Captain Scardina has graduated from the following Police Officer Standards and Training leadership courses: Sherman Block Supervisor Leadership Institute (2008), 2015 P.O.S.T. Executive Development program, and the California P.O.S.T. Command College in 2017.


Captain Mark Hale

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Detention Bureau Commander

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Mark Hale

As a native of Sonoma County, Mark grew up in Petaluma where he and his wife, Kimberly, chose to raise his two daughters, Alexus and Brooklynne, and son, Colby. Mark is also a grandfather to his granddaughter, Navy. Mark attended the Santa Rosa Junior College and received his Associates of Arts Degree in Criminal Justice.

Mark has dedicated himself to serving and keeping the residents of Marin County safe since joining the Marin County Sheriff’s Office in May 1993. Between 1993 and 2021, Mark served in the Custody and Patrol Divisions achieving every Merit System classification (Deputy Sheriff, Sergeant, Lieutenant, and Captain). Mark also worked as a narcotics detective in the Marin Count Major Crimes Task Force and a Detective Sergeant in the Investigations Division of the Sheriff’s Office. In August 2019, Mark was appointed the Marin County Major Crimes Task Force Commander.

In February 2021, Mark was promoted to the rank of Captain. Since the promotion, Captain Hale has been commanding the Detention Services Bureau which includes the Marin County Jail and the security and operations of the Marin Superior Court.

As a parent and community partner, Mark has coached youth baseball, softball, and soccer. Mark has served as a board member of the Petaluma Girls Softball Association and the Petaluma Steal Breeze Travel Softball Organization. Mark is also a member of several law enforcement professional associations.

Captain Hale has graduated from the following Police Officer Standards and Training leadership courses: Sherman Block Supervisor Leadership Institute (2009) and 2018 P.O.S.T. Executive Development program.

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