The SFPD (or San Francisco Police Department) was a law enforcement agency in San Francisco, California in the United States. This police force originated in the 19th century and protected the city for centuries afterwards.
1893 policeman.
An SFPD patrolman in 1893 detained several 24th century time travellers from the senior staff of the starship Enterprise-D.
In the mid-20th century, The Dixon Hill literature (later adapted as holoprograms) took place in San Francisco in the 1940s. One of Dixon Hill's associates was a fictional character named McNary, a lieutenant and detective in the SFPD. In 2364, Captain Picard and Dr. Crusher were playing the holonovel. A Desk Sergeant for Precinct 12 of the SFPD was flirting with Dr. Crusher. (TNG: "The Big Goodbye")
1986 policeman.
In 1986, an SFPD motorcycle patrolman encountered Pavel Chekov and Uhura, who had time travelled from the 23rd century. (Star Trek IV)
2024 SWAT leader.
Benjamin Sisko and Julian Bashir were sent back in time to 2024, and didn't have any identification to show officers Vin and Bernardo Calvera of the SFPD that they weren't homeless, and were sent to a Sanctuary District. Jadzia Dax, also sent back in time, was assisted by Chris Brynner (after telling him she wasn't homeless, and just needed to re-order her identification) so the police didn't take her in as well. (DS9: "Past Tense, Part I")
See also: