Police believe travellers on a train to Surbiton may be able to help find three men involved in a stabbing in Guildford.
It happened on November 4th at the city’s London Road railway station where a man was knifed in the leg after the three had asked if he had a mobile phone.
The offenders boarded a train and travelled to Surbiton before getting off and catching another towards Clapham Junction.
Anyone with information is asked to get in touch with British Transport police on 08000 40 50 40