Which of the following is NOT included as a situational factor?

Situational factors refer to the elements that are external to the individuals involved and can influence behavior in a given context, particularly in security scenarios. The internal department policies are not considered situational factors because they are rules or guidelines established by an organization that govern its operations and employee conduct. These policies are somewhat static and do not vary depending on external circumstances or situational contexts.

On the other hand, the number of subjects, knowledge of a subject, and time and distance can change depending on the specific scenario at hand. For instance, the number of subjects present can significantly impact how a security guard assesses a situation or determines a course of action. Similarly, understanding how well a subject is known can affect decision-making during an incident. Lastly, time and distance are crucial situational factors that can influence responses in security operations, as they are variable based on the context of the situation encountered. Thus, internal department policies stand apart as they reflect organizational structure rather than situational variability.