Law enforcement, criminal investigation, patrol, traffic, crime prevention, and other public safety duties are provided by the Mill Valley Police Department under the direction of Chief Bob Ritter.
Chief Ritter oversees the operations of 19 sworn positions, including two captains, four sergeants, two detectives (one of which is the sergeant in charge of Investigations and the other is the Juvenile Resource officer), two corporals, nine patrol officers and two reserve officers. Non-sworn personnel include two parking enforcement officers, one community service officer, three administrative clerks, one reserve officer, one volunteer and a chaplain.