Salford was a part of greater Manchester, England. The Doctor was arrested by D.I. Patricia Menzies of the Salford constabulory in 2008 on the charge of murder. (BFA: The Condemned) Later, Menzies also arrested Charlotte Pollard on suspicion of murder. Both the Doctor and Charley revisited Salford and worked with Menzies when a mysterious pound coin turned up in a coin-operated vending machine in the area. (BFA: The Raincloud Man)
Decades earlier, the Doctor and Melanie Bush visited Salford in 1965, and got involved in a mystery at a local pub and hairdresser's involving the wishing beast. (BFA: The Vanity Box)
Behind the Scenes
Christopher Eccleston (alias the Ninth Doctor) was born in Salford.