Police are investigating claims of an assault in Acton on July 19 at around 6pm. The suspect allegedly tailgated through the barriers at Acton Main Line station, shoving a man in his 50s to push through. He is then said to have followed the victim to a shop in the area and slapped him in the face. Officers would like to speak to the man pictured, as they believe he may have information that could assist their investigation. Anyone who recognises him is asked to text BTP on 61016 or call 0800 40 50 40, quoting reference 498 of 19 July.