"This poster from 2002 was made to reassure the [British] public that the use of surveillance helps to keep the transport system a safer place. The text says: ‘CCTV & METROPOLITAN POLICE ON BUSES ARE JUST TWO WAYS WE’RE MAKING YOUR JOURNEY MORE SECURE’. There was also a leaflet done explaining the measures being taken to improve security."
https://blog.ltmuseum.co.uk/2011/12/06/poster-of-the-week-17/
https://blog.ltmuseum.co.uk/2011/12/06/poster-of-the-week-17/