Which of the following is NOT considered a rule when dealing with an explosive device at a scene?

Turning off your radio and cell phone is typically not recommended when dealing with an explosive device at a scene. In fact, communications can be crucial for coordinating a safe response, as they allow responders to stay informed, relay vital information, and collaborate effectively. This guidance is also rooted in the understanding that modern devices often employ more sophisticated methods for detonation that are not triggered by ordinary electronic signals. Therefore, while maintaining communication is key, securing the area, evacuating non-essential personnel, and notifying the bomb squad are essential safety protocols designed to minimize risk and ensure the safety of everyone involved. These rules emphasize proactive measures in managing the scene and ensuring a safe response to potential threats.