What should be done with the back door after dark?

Locking the back door at all times after dark is essential for maintaining the security of the restaurant. It helps prevent unauthorized access, protects employees, and secures inventory and equipment. By ensuring that access is limited, the restaurant can minimize the risk of theft or other safety issues that may arise during non-business hours.

In contrast, keeping the door open for deliveries would compromise security, as it invites potential intruders. Using the door solely as an emergency exit without proper control measures would also pose risks, especially if it were left unlocked or accessible to anyone passing by. Ensuring it is unlocked for guests contradicts safety protocols, as it could allow unauthorized access to the premises. Overall, prioritizing security is crucial, and locking the door achieves that goal effectively.