POLICE want to speak to this man in connection to the theft of a 14-year-old girl's laptop at Chalfont and Latimer station.
Officers at British Transport Police released the CCTV image as part of a campaign to clamp down on thefts at London Underground stations.
Police say the girl left her laptop bag on the platform at Chalfont and Latimer at around 4.20pm on Thursday, January 30 before boarding a train.
Realising her mistake she returned ten minutes later, only to find the bag had been taken.
British Transport Police say they want to speak to the man in the CCTV still in connection to the incident.
Detective Inspector Jez Walley said: "We are now calling on the public to help identify the people pictured in the CCTV, as we believe they have key information that could help the investigations.
"If you recognise any of these people pictured, or have any information which could assist us, then I urge you to get in touch."
Anyone with information should contact British Transport Police on 0800 40 50 40, or text 61016, quoting LUA/B7 of 13/03/14 along with image number two. Alternatively call the independent charity Crimestoppers anonymously on 0800 555 111.