When is a soldier permitted to temporarily detain an individual?

A soldier is permitted to temporarily detain an individual when that individual poses a direct threat to Department of Defense (DOD) forces. This aligns with the principles of the Standing Rules for the Use of Force (SRUF), which emphasize the need to protect military personnel and U.S. interests in potentially dangerous situations. If an individual is threatening DOD forces, this constitutes a clear and present danger, justifying the soldier's authority to take action to neutralize that threat.

The other options do not meet the necessary legal or tactical justification for detention under the SRUF. While suspicious behavior may warrant further investigation, it alone does not provide sufficient grounds for detention without a clear threat. Similarly, failing to pay an entry fee or being known to the soldier does not constitute a legitimate reason for detention under the use of force protocol, as these situations do not involve immediate danger or the need for protective measures.