Final answer:
It is not a good rule for a security officer to carry all keys on their person while doing rounds, as it poses a security risk. A key control system is a safer alternative.The statement is false.
Step-by-step explanation:
The question as to whether it is a good rule for a security officer to carry all the keys on their person while doing rounds can be answered as false in the context of security best practices. While it is important for security officers to have access to the areas they need to check or secure, carrying all the keys at once could pose a serious security risk if the officer were to lose them or if they were stolen. A better approach would be a key control system that ensures only the necessary keys for a particular round or shift are carried, minimizing the risk of a potential security breach.