In the show two main teams made up the California Bureau of Investigation (CBI), which were based in Sacramento and also had offices in San Francisco and Fresno. In the hierarchy of the state government, the Director of the CBI answers to the state Attorney General. Each field office has a chief, the largest of which is in Sacramento where the series takes place. In 2013, during the final stages for the hunt for Red John, Supervisory Special Agent Dennis Abbott permanently closed down the CBI as a result of The Blake Association.