Detectives investigating an incident of indecent exposure are today releasing these images in connection.
At around 7.50am on Wednesday 22 May on board a train from Wylde Green station to Sutton Coldfield a man exposed himself to a 13 year old girl.
If you recognise the man in the images or have any information about the incident please contact officers by texting 61016, or by calling 0800 40 50 40 quoting reference 541 of 23 May.
Information can also be given anonymously to Crimestoppers on 0800 555 111.