Final answer:
Access control guards will need to maintain a log throughout their tour of duty. It provides a detailed account of what occurred and serves as a reference for future purposes, such as investigations or audits.
Step-by-step explanation:
The access control guards in question will be required to maintain a log throughout their tour of duty.
This log keeps a record of any incidents, activities, or observations made during the shift.
It provides a detailed account of what occurred and serves as a reference for future purposes, such as investigations or audits.