The Sentry Access System was installed in the Main Library in August 1999 to improve security in the Main Library. The main feature of the system, called Sentry, is that it operates via the barcode on your current library membership card. All users of the Main Library must bring their library membership card with them whenever they wish to enter the building. Porters on duty have been instructed not to bypass the system for anyone who does not have their card.
Further details are available from leaflets in the three libraries.
This document has been approved by the head of department or section.