File this one under criminal mastermind.
The Metropolitan Police want help identifying a man (picture below) they want to speak to in connection with a robbery.
The 25-year-old victim was pushed to the floor from behind while she walked down Westdown Road, Leyton, in north-east London on August 5, at around 2pm.
Her HTC smartphone was snatched from her hand and later that day attempts were made to access the phone.
Attempts later that day to access the phone were made. By entering an incorrect password this triggered the phone's front facing camera to take a 'selfie' photograph which was emailed to the victim.
Some apps automatically email pictures to a registered email address when a passcode is incorrectly entered.
Anyone with information or who can identify this man is asked to call police at Waltham Forest on 101 quoting reference 4915903/15. Alternatively, to remain anonymous call Crimestoppers on 0800 555 111.