A San Francisco police detective in Past Tense, Part II who negotiates by telephone and in person with the hostage-takers at the Sanctuary District processing centre in 2024.
Detective Preston is a police officer in the third-season episode Past Tense, Part II. When the residents of Sanctuary District A rise up in September 2024 and seize the processing centre with its staff as hostages, she is the officer sent to talk to them.
Preston deals with Benjamin Sisko, who has taken the place of the dead Gabriel Bell, and with Michael Webb and the volatile B.C. She listens to their demands that the districts be closed and the Federal Employment Act restored, and is frank that the governor is unlikely to agree.
She urges them to release the hostages while there is still time, warning that the authorities will not wait for ever. Her efforts fail when the governor orders troops in, and the assault that follows kills hundreds of residents.