Overview

• The released images show a man wearing a brown jacket, white shirt, blue jeans and headphones exiting Mile End station just before the assault.
• Police issued the CCTV stills on July 22 in a public appeal under case reference 394/1 May.
• Investigators believe the suspect followed a woman in her early 20s onto a District line train and then sexually assaulted her during the morning commute on May 1.
• The quick-thinking victim evaded the attacker by reboarding the southbound service as the doors closed at South Woodford.
• Anyone who recognises the man is asked to contact British Transport Police on 61016 or report anonymously through Crimestoppers at 0800 555 111.