Police have now published the photo of the as-yet unidentified man, who inadvertently took a clear photograph of himself with the camera he planted in the ceiling in the coffee shop’s only toilet.

The camera is believed to have been in place in the London coffee shop for between three and four weeks for the purposes of voyeurism.

Fortunately, police believe the images have not been viewed by anyone other than themselves, as the device was not Internet-connected.