Despite standing as chief prosecution witness in the Moors Murders trial David Smith was vilified by the public due to the accusations thrown at him by Myra Hindley & Ian Brady about his involvement in their crimes. Hindleys later confession that she & Brady had lied in an attempt to reduce their sentences did little to diminish the slurs against his name. For over four decades Smith was asked by writers & film-makers to tell his story. Apart from a handful of brief interviews he always refused. Carol Ann Lee met Smith during her research for One of Your Own her critically acclaimed biography of Hindley following which he finally agreed to reveal all. In Evil Relations (previously published as Witness) interviews archival research & most significantly David Smiths own vivid memoir are fused to create an unforgettable often harrowing account of his life before during & after the Moors Murders.