The BTP provide a service to rail operators, their staff and passengers across the UK. They work with station operators to implement the Secure Stations Scheme. They also police Glasgow Subway.
www.btp.police.uk
0800 40 50 40
Currently no remote reporting system set up. You can use the remote reporting service for the region where one exists.
If you have a complaint, make it online or in writing:
www.btp.police.uk/about_us/complaints.aspx