PC Mark Kennedy’s former friends have – understandably – been most reluctant to speak candidly about the aspect of his life that could prove most explosive.
Placed deep undercover for more than seven years in the protest community, where he was known as Mark Stone, the police spy built strong friendships, and left a trail of individuals feeling confused and betrayed.
Tonight, a woman came forward to add to accusations that Kennedy in his undercover role had sexual relationships with women in the protest movement. Her allegations raise important questions for his senior police handlers about his conduct while operating undercover.
Giving details about how Kennedy gained her trust and slept with her many times over the course of a year, Anna, 26, said she felt "violated" by the actions of the police officer.
She now questions whether the British police have allowed a string of undercover agents to use sex as a "tactic" to disrupt and glean information about environmental campaigns.
A foreign national who has been active in the environmental movement throughout Europe, Anna said she met Kennedy in 2005 when she was 21.
"As far as I knew, he was very well connected and very active. He was very keen to help out in any way he could with our campaign. We met in London, and obviously as he was very active in everything I was doing we ended up spending a lot of time together."
She said she developed a sexual relationship with the undercover police officer, and had sex with him more than 20 times during that period.
"This movement is a small clique, so it is not difficult to run into the same people in various different situations. I also met him at various protests, for example in Germany, Spain, Ireland, the Netherlands and Iceland."
She said that she spent time at his house in Nottingham but the relationship eventually "faded out". Now married, she is no longer connected with the protest movement.
Anna, who did not want to give her full name, said there were several other women within the protest movement who Kennedy slept with. "I knew he was seeing other people at the same time and there was never any type of romance involved."
There have been unconfirmed reports that Kennedy, who is believed to have had a wife and children before going undercover, also had a long-term relationship with a woman in Nottingham.