The Manchester and Salford Police was, from June 1, 1968 to April 1, 1974, a police force in the United Kingdom. It was created as a merger of the Manchester City Police and Salford City Police, and covered the adjacent county boroughs of Manchester and Salford. It was amalgamated under the Local Government Act 1972 with parts of the Lancashire Constabulary and Cheshire Constabulary to form Greater Manchester Police.
In 2006, when DCI Sam Tyler was hit by a high-speed car, the force had by then become the Greater Manchester Police. After Sam had seemingly woken from his coma, he found he couldn't feel anything and was unable to concentrate during a police meeting. Sam then committed suicide by jumping off the roof of Stopford House and went "back" to 1973 to save his colleagues, including WDC Annie Cartwright, whom he had made a promise to return to when he tried to get help.
In 1980, after Sam had supposedly drowned following a high-speed pursuit chase, Gene, Chris and Ray transferred to the London Metropolitan Police, where they were later joined by DI Alex Drake from 2008 the following year. In reality, the Manchester and Salford Police was part of the supernatural world that came to be known as Gene Hunt's World where dead officers had suffered trauma in the real world and it was Hunt's duty to help them accept their deaths and move on into Heaven. It was revealed that Gene had done this for both Sam Tyler and Annie Cartwright and had guided them to the Railway Arms once they'd accepted their deaths. In Ashes to Ashes, it was revealed that Gene and Chris and Ray were also dead; it is likely that desk sergeant Phyllis Dobbs was also dead all along.