There has been some confusion in the past, when closing Magrath, about which duties belong to the Circulation staff and which belong to the security monitors. Here's an easy breakdown:
Circulation Staff: turn off monitors (public computers), shut down Circulation computers completely, unlock interior book drop, other Circulation-related tasks as noted in our closing procedures
Security Monitors: turn off lights in main room, close gates, key elevator
Please be sure to ask a Circulation Supervisor, and/or clarify with the guard on duty, if you have any questions about this.