What aspect of security does a sally port specifically address?

A sally port primarily addresses the aspect of minimizing escape chances of inmates. This is because a sally port is designed as a double-secured entry point that prevents direct access between outdoor and indoor areas of a correctional facility. When an inmate or a vehicle passes through a sally port, it involves a two-door design where one door must be securely closed before the other can be opened. This process limits the risk of inmates escaping during transfers in and out of secure areas.

While the other aspects mentioned—preventing weapon smuggling, ensuring only authorized personnel can enter, and controlling vehicle access—are important functions of a secure facility, they do not solely define the primary purpose of a sally port. The key feature of this design is its ability to create a controlled and secure transition area that helps ensure that inmates cannot flee while being moved, making it an effective measure in maintaining lockdown security and managing inmate transfers.