What is the primary purpose of surveillance?

The primary purpose of surveillance encompasses various activities, and selecting all of the above reflects this comprehensive understanding. Surveillance is fundamentally about observing individuals' actions and behaviors in order to gather evidence that can be used in investigations or legal proceedings. Through observation, investigators can identify patterns, relationships, and associates of the individuals being monitored, thus contributing to a broader understanding of the context surrounding their actions.

In specific situations, each of these aspects plays a crucial role. For instance, gathering evidence is often essential in legal or security contexts, while observing actions helps in real-time decision-making and analysis. Identifying associates adds a crucial layer to understanding the network and potential implications of an individual's behavior. Therefore, the collective assertion that all these purposes fall under the primary objective of surveillance highlights its multifaceted nature in security operations.