Undercover police officer who deceived woman showed ‘sadistic tendencies’ spycops inquiry told

Activist says treatment of her by Mark Jenner, with whom she had five-year relationship, left her devastated

An undercover police officer who deceived a woman into a five-year relationship and strung her along when she wanted to have children with him had sadistic tendencies", the spycops inquiry has heard.

Mark Jenner lived with the woman, known as Alison, as a couple without telling her that he was an undercover officer sent to spy on political campaigners.