A TubeLines Site Person in Charge accepted a forged Permit to Enter to a machine chamber at Old Street. The Station Supervisor picked up on it, and the unauthorised person left the station, but TubeLines did not query their procedures on how this had come about.
Under the new Rule Book, Station Supervisors have much less responsibility for monitoring contractors, and the likes of TubeLines will take over. This is a very good case for opposing the new Rule Book