Explanatory notes by Keith Dewhurst and a research document with details about Lancashire County Constabulary, including notes on uniforms, equipment, departments and office layouts, relating to 'Z Cars'. 'Z Cars' was a series produced by the BBC that ran from 1962 - 1978. The drama follows the work of the police force in the fictional town of Newtown in the North of England.

Material relating to Episode 31 of Z Cars Series 2, titled 'The Birds of the Air', broadcast 17 April 1963 and produced by the BBC. First draft of screenplay with handwritten annotations, and Synopsis.

In the episode, Chief Inspector Barlow is looking into a pair of small time criminals who hold up the owners of a hotel they are staying at.

Revised rehearsal script, with dates 7 - 19 June 1963, for Episode 40 of Z Cars Series 2, titled 'Come on the Lads', broadcast 19 June 1963 and produced by the BBC