When action is needed on the ground, the person who serves as Incident Commander must be able to make immediate operational decisions at the scene. That role is filled by the on-scene supervisor who has the authority to direct actions, allocate resources, and set incident objectives. It’s usually the highest-ranking staff member present or a designated designee. This arrangement ensures unified command and rapid, coordinated responses that protect staff and inmates and keep operations moving smoothly. The warden oversees the institution from a broader perspective but isn’t typically on the scene directing day-to-day actions. The patrol officer may observe and report but isn’t authorized to authorize large-scale tactics. The medical supervisor focuses on medical care rather than overall incident management. So, the on-scene supervisor with operational authority best fits the Incident Commander role because they can immediately direct actions and coordinate all response elements from the location.