A formal complaint has been received which is being investigated by the DPS (Directorate for Professional Standards) and we appreciate the concerns that have been raised.
The DPS inquiry is taking place in conjunction with Operation Herne's investigation into the wider issue of past arrangements for undercover identities used by SDS officers.
We can confirm that the practice referred to in the complaint is not something that would currently be authorised in the MPS (Metropolitan Police Service).
More top news
Two classic cars that ex-Rolling Stone Bill Wyman drove when the band recorded some of their classic albums are to be sold at auction
David Cameron, Ed Miliband and Nick Clegg urged people to vote for them as the campaign trail draws to an end.
Roger Daltrey has confirmed his band will and promised to close the festival "with a bang".