Undercover Cops

How far should an undercover police officer go to get evidence?

A group of eight women is suing the Metropolitan Police claiming they were tricked into long-term relationships with undercover officers.

It follows the revelation last year that one officer - Mark Kennedy - had spent seven years infiltrating environmental protest groups and had been involved with women he was targeting.

Now some of the women have spoken exclusively to File on 4 about their legal fight. Jane Deith reports.