A voyeur who installed a hidden camera in a Starbucks toilet apparently captured himself on film in the process.
The device was seized by British police in a Starbucks in Vauxhall, south London, close to the headquarters of MI6, after a member of the public discovered it in a ceiling grate.
Police believe it had been in place for a maximum of four weeks last year.
Detectives have released an image of the man they believe placed the camera there.
Anyone with information is asked to call Brixton CID on 020 8649 2134 or Crimestoppers on 0800 555111, or to tweet @MetCC.