Which of the following is NOT an element of a post-surveillance debriefing?

In a post-surveillance debriefing, the process typically involves a comprehensive evaluation of the surveillance operation that took place. This includes assessing the safety of the operation, which ensures that all personnel involved were secure and that the surveillance did not compromise anyone's safety.

Discussing future surveillance strategies is vital to improve upon past operations. This aspect allows for planning and refining techniques for better outcomes in future surveillance missions. Evaluating observational relevance is also crucial; it involves determining which observations were significantly useful and pertinent to the goals of the investigation.

Choosing which observations to discard typically focuses on separating useful data from irrelevant noise; however, while this can be part of information management, it is not commonly regarded as a primary objective of a post-surveillance debriefing. Instead, the emphasis is generally on reinforcing and learning from the data that was collected. Therefore, the action of deciding which observations to discard does not align with the other core elements that aim to ensure safety, improve strategies, and evaluate the relevance of observations.