Police have released an image of a man wanted in connection with the riots in Wandsworth and Croydon in August 2011.
Detectives working on Operation Withern are still investigating offences committed in London during the widespread disorder 17 months ago and would like to identify this man so they can progress with their enquiries.
The man in the image is understood to have been in both Wandsworth and Croydon on August 8, 2011.
Detective Sergeant Darren Lovatt, working in the Operation Withern Team at Croydon, said: "We still have many hours of CCTV footage to work through and our determination to bring to book all of those who committed offences during the disorder of August 2011 remains as strong as it was back in the summer of 2011.
"We would ask the public to take a good look at this person and contact Crimestoppers, which is completely anonymous, with any information."
Since the civil disorder there have been a total of 4,818 arrests of which 3,082 have resulted in offenders being charged or summonsed to court.
A further 2,599 cases have ended up in court, and of these 1,103 have resulted in custodial sentences - a conviction rate of 86 per cent.
Anyone with information, or who recognises the person should call Crimestoppers on 0800 555 111 quoting reference 114818.