What is the correct protocol for a hostage or barricaded situation?

In a hostage or barricaded situation, the protocol that involves containing the scene, controlling the environment, communicating with the individuals involved, and calling in specialized units like SWAT is crucial for managing potentially volatile scenarios safely and effectively.

Containing the scene ensures that both the public and the hostages are kept out of harm's way by isolating the area around the incident. Control is important to maintain order and to manage the situation without escalating tension. Effective communication is essential, as it provides a means to negotiate with the hostage-taker and gather crucial information while also addressing the needs of the hostages. Calling in SWAT is necessary due to their specialized training and resources designed to handle high-stakes incidents involving barricaded suspects or hostage situations.

The other options do contain some elements that may seem relevant, but they do not encapsulate the most comprehensive and practical approach laid out in the selected answer.