The 75-minute documentary opens with CCTV footage of Everard’s last movements – a trip to Tesco, a walk along a well-lit street, a phone call with her boyfriend – before Couzens tricked her into his car using his warrant card. He would later drive her to Kent before raping and murdering her, for which he is currently serving a whole life sentence.

Told by those closely involved in the case from the outset, many of whom are speaking on camera for the first time, Sarah Everard: The Search For Justice is an important reflection on the extent of violence against women and girls in our society, an issue recently declared a national priority alongside terrorism and organised crime.

In the film, DCI Katherine Goodwin recalls the moment she found out Couzens was a police officer. “I knew that I had to tell my boss and I can just remember the shock of having to just sit on the floor of the office and say to her: ‘You’re not going to believe this; he’s a police officer,’” she tells the camera.

Sarah Everard: The Search For Justice is a harrowing but important reflection on the extent of violence against women