A green activist duped into a relationship with a married undercover officer has won almost £230,000 for breaches of her human rights.
Kate Wilson, 41, and Mark Stone amicably split in 2005 after a two-year romance.
But in 2010 she discovered he was a police officer called Mark Kennedy, sent to spy on activists.
He had sex with up 10 other women during his deployment. He was with one woman for six years before she discovered a passport in his real name.
A tribunal told the Met and the National Police Chiefs Council to pay Ms Wilson £229,471.96 for breaches under the European Convention on Human Rights.
Met Assistant Commissioner Helen Ball said: “A series of serious failings allowed Kennedy to remain deployed on a long-term undercover deployment without the appropriate level of supervision and oversight.”