Precinct 12 was a police precinct, near to downtown San Francisco, in the Dixon Hill series. Police officers Dan Bell and McNary were assigned to this precinct.

As the character Dixon Hill, Captain Jean-Luc Picard was questioned in a Precinct 12 interrogation room by police lieutenants Bell and McNary, who were looking for information on his relationship with Jessica Bradley and his location during the time of her murder. (TNG: "The Big Goodbye")