In progressive surveillance, how does the observer operate?

In progressive surveillance, the approach involves observing a target for brief periods before withdrawing to reassess the situation and return after some time. This method allows the observer to gather information without drawing attention to themselves, which is crucial for maintaining the covert nature of the surveillance. By taking breaks, the observer can also analyze what has been observed, formulate plans for future observations, and adapt to any changes in the target's behavior or surroundings.

This technique is particularly effective in situations where a constant presence might raise suspicion, as it enables the observer to remain inconspicuous. It also allows the opportunity to observe the target in different contexts or times, which can provide a fuller picture of the individual's activities. The aspect of returning later ensures that the observation is not continuous, further decreasing the likelihood of detection.