What distinguishes a cordon and search from a cordon and knock?

The distinction between a cordon and search and a cordon and knock primarily revolves around the specific actions undertaken during each process. A cordon and search is an operation where law enforcement or military forces isolate an area and conduct a thorough search for evidence, suspects, or contraband within that zone. This involves establishing secured perimeters to control access and prevent escape, allowing for a comprehensive search to take place.

On the other hand, a cordon and knock typically involves securing the perimeter of a location but focuses on knocking on doors to engage with individuals inside rather than searching the premises directly. This method often aims to gather information or encourage voluntary compliance, rather than performing a detailed search and seizure. The key aspect of this approach is that it respects the privacy of individuals and does not involve entering buildings without consent, thereby differentiating it from a cordon and search operation.

In summary, the correct answer highlights that a cordon and search involves actively isolating an area to conduct a search, while a cordon and knock is oriented around engagement and information gathering, emphasizing the procedural differences between the two approaches.