According to The Guardian, PC Mark Kennedy had sexual relationships with a number of women in the environmental movement during the time he infiltrated the organizations, while working for the Public Order Intelligence Unit. He was "just not hippy in a way", for example because he ate meat, but he did have a pick-up truck and money, and he was very popular.
Hey, it sounds like this is actually a recruitment ad for the somewhat-secret police. Join the force, and become the spy who shagged hippie girls. Almost like James Bond, with a license to spill.