TRANSPORT police are investigating after a man exposed himself to a 14-year-old girl on a train.
The incident happened on-board a train travelling from Gatwick to Hitchin on August 27 at around 7pm.
A man sat near the teenager and her mother and during the journey exposed himself inappropriately to the girl while staring at her.
Her mother then confronted the man, who got up and walked away.
Officers believe the man pictured may have information which could help their investigation.
If you recognise him, or have any information, please contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 548 of 27 August.
Alternatively, call Crimestoppers anonymously on 0800 555 111.