Final answer:
Personal logs, or shift logs, are critical records that must be kept by security guards according to their employer's guidelines, and the given statement is accurate.
Step-by-step explanation:
The statement given is TRUE. Personal logs, also known as shift logs, are important documents that security guards use to summarize their activity during each period of their shift. These logs serve as official records for the security agency or company that employs the guard. It is mandatory for security guards to complete these logs, ensuring that they adhere to the specific employer's guidelines. The completion and accuracy of these logs are critical because they may be used for legal purposes, incident reports, or to improve the efficiency of future security measures.