West Yorkshire Police
The West Yorkshire Police was the police force of Halifax, among other places, in the 21st century. (AUDIO: The Running Men)
Greyson stated that the police was in the pocket of corporations and would not help him stop the construction on the site of the Halifax gibbet. (AUDIO: The Running Men)
Sergeant Ambika Desai worked for the West Yorkshire Police and arrested the Ninth Doctor on suspicion of impersonating a police officer, before being pranked by her coworkers, leading her to stumble upon a dead body. Together with the Doctor and Greyson, although not on official police business, she saved Halifax from the Vortex Amoeba. Once the threat was dealt with, she arrested Annalise Avenly, who was being possessed by the Vortex Amoeba. (AUDIO: The Running Men)