Final answer:
The question asks when an Alarm Monitor checks with manned Security Forces facilities, which likely happens at regular intervals throughout the day and night as part of a comprehensive security protocol, especially if 24-hour drone surveillance is employed for monitoring.
Step-by-step explanation:
The question about when an Alarm Monitor conducts checks with all manned Security Forces (SF) facilities seems to reference a procedure that might be part of a security or military protocol.
It's not clear from the context provided exactly when these checks occur as the provided information focuses on the need for 24-hour monitoring of an area using drone technology for quick response to human incursions.
In practical terms, such a monitoring system could be checking in with manned facilities regularly to ensure security and operational integrity. The 24-hour surveillance likely means that these checks would be conducted at regular intervals throughout the day and night.
One can assume that an effective monitoring system, especially if it is enhanced by technology like drones, would feature real-time or near-real-time status checks of all manned security posts to promptly detect and respond to unauthorized activities.