An undercover police officer duped a G8 protester into a relationship at the time of the 2005 Gleneagles summit, it has been claimed.
Over a period of eight years, Mark Kennedy gathered intelligence on activists and even formed relationships.
Infiltrating protest groups between 2003 and 2010, the Londoner was eventually unmasked.
The day the G8 summit began, a group of activists were driven to the site by Kennedy, calling himself Mark Stone.
One of the women, who fell in love with Kennedy, said she felt “violated” when she discovered his identity.
American protester Sarah Hampton, who said she was in a relationship with Kennedy during the summit but separated in 2006, spoke to STV.
Kennedy resigned shortly after being exposed, and later suffered from post-traumatic stress disorder.
A public inquiry into undercover policing is under way in England and Wales. The Home Office is considering whether Scotland should be included.
Another woman who was deceived into a relationship with Kennedy won a High Court battle against Scotland Yard.
Kate Wilson made claims against the force for deceit, assault and battery, misfeasance in public office and negligence.
The Metropolitan Police withdrew its defence in her case two months after seven other women tricked into relationships with Scotland Yard moles received an apology and payouts.