In documents disclosed to her legal team, the police concede that Mr Kennedy's sexual relationship with Ms Wilson "was carried out with the acquiescence of his cover officers and line manager".<br><br>Ms Wilson told the BBC: "The police have said that these cases were a failure of supervision and management, and that is just not the case.<br><br>"Management were absolutely complicit in what was going on."<br><br>In November 2015, the Met Police paid compensation to a number of women who were duped into relationships with police spies.<br><br>In an apology at that time, the force said: "The forming of a sexual relationship by an undercover officer would never be authorised in advance."<br><br>"What we are seeing in this case - and then of course it makes us question all the other cases - is that they allowed it to continue because it was convenient, because it assisted whatever their objectives were.<br><br>"That is incredibly disturbing."