After securing the premises in a barricaded subject situation, the supervisor should do what to establish command?

Establishing command in a barricaded subject situation is a critical step in ensuring effective management of the incident and the safety of all involved, including officers and civilians. Setting up a command post in a strategic location upwind from the scene allows the supervisor to maintain a clear overview of the situation while minimizing exposure to potential hazards, such as toxic fumes or gunfire. Being upwind is particularly important for safety reasons, as it helps ensure that the supervisor remains in a safer environment where they can effectively communicate and coordinate with responding personnel.

This setup also facilitates efficient communication and decision-making, as a command post serves as the hub for gathering information, assessing the situation, and deploying resources. It enhances the ability to manage the incident by providing a structured space for command staff to plan operations and interact with various units—like negotiators and tactical teams—effectively.

In contrast, other actions such as initiating a direct assault or waiting for SWAT without any subsequent action might lead to confusion or an unsafe situation. Relocating far from the scene could result in a lack of control over the incident, diminishing the capability to respond promptly to evolving circumstances. Thus, establishing the command post correctly is paramount in handling barricaded situations efficiently and safely.