The public inquiry into police spies was brought about by the bravery of the women they abused, as a new documentary shows

Information in the public domain about the undercover policing of protest groups from the late 1960s onwards would not be there were it not for the extraordinary courage of a group of women who were conned by officers into long-term sexual relationships. It is more than a decade since the investigation of this, and other wrongful actions, by undercover units was taken over by a judge-led public inquiry. Following revelations that officers had spied on Stephen Lawrence’s family, Theresa May, who was then the home secretary, ordered that inquiry.

ITV’s new three-part documentary, The Undercover Police Scandal: Love and Lies Exposed, made in collaboration with the Guardian, emphasises that there was nothing inevitable about this outcome. The series, which features remarkable home-video footage of one officer, Mark Jenner (known undercover as Mark Cassidy), is a gripping and shocking account of the way that five women were tricked into romantic relationships lasting years. As well as the insidious conduct of individuals, the series sheds light on the systemic nature of the abuse and the tenacity of the women who uncovered the truth.