Major Crimes Task Force

The Marin County Major Crimes Task Force dissolved in July of 2020


In 1979, a Joint Powers Agreement (JPA) was formed between the County, towns and cities. Currently, the members of the Task Force JPA include the County, the towns and cities of Belvedere, Corte Madera, Fairfax, Larkspur, Mill Valley, Novato, Ross, San Anselmo and Tiburon. The JPA provides oversight of the MCTF through a 9-member Oversight Committee comprised of a City Councilmember, a member of the County Board of Supervisors, 2 city managers, the County Administrator, 2 chief law enforcement officials and 2 Marin County residents who do not hold any of the above positions.

The MCTF is currently managed by the Sheriff’s Office with a Sheriff’s Lieutenant overseeing the operation and a Sheriff’s Sergeant supervising the unit. The main focus of the MCTF is narcotic related investigations. We also serve as a countywide investigations resource and will assist other agencies with cases of significance. The MCTF supplements the efforts of the existing local law enforcement agencies to better deal with major cases or criminal activity that no single jurisdiction can effectively deal with alone. 

Under the umbrella of the Task Force is the MCTF, the Coordination of Probation Enforcement (COPE) Team and the Auto Theft Task Force. Illegal narcotics are the common thread that motivates the vast majority of crimes occurring in Marin, including burglary, thefts, identity thefts, robberies, assaults, murders and gang related crimes. Vehicle thefts are generally related to additional kinds of crimes, which tend to be directly related to illegal drugs and substance abuse as well.

Narcotic abuse impacts all of us in one way or another; whether it’s through the addiction of a loved one or a friend or because we are the victim of a crime committed by a substance abuser. While the “war on drugs” is one of constant debate, the MCTF fights the battle on a local level to help provide quality of life in Marin we’ve all come to enjoy as regular parts of our lives. We all have an obligation to protect our children from the seduction and dangers of illegal drugs and drug abuse. By being proactive in our efforts and investigations, we make a positive impact on the drug abuse culture in Marin.

How Can You Help?

If it doesn't look right, it probably isn't. We rely on our citizens and law enforcement partners to report suspicious activities that may be or appear drug related. We all have a sense of what’s right and what’s wrong. 

If it looks wrong, report it. If it needs immediate attention, call your local law enforcement agency or 9-1-1. If it’s an on-going issue, you can report it either to your local law enforcement agency or to us; the more specific the information the better (including specific information such as license plates, names or accurate, detailed descriptions). Together, we make a difference.

Major Crimes Task Force Office:  415-884-4878

Anonymous Tip Line: 800-369-4694


Marin County Major Crimes Task Force Oversight Committee Meeting Minutes