Where should concussion mortars be placed when not in use?

Concussion mortars should be placed in a secure location when not in use to ensure safety and prevent unauthorized access. This is essential because these devices can be hazardous if mishandled or accessed by individuals who are not trained or authorized to operate them. A secure location helps to minimize the risk of accidents and protects both operators and spectators from potential harm.

While some other options might seem plausible, such as storing them in a mobile container for transport purposes, this does not guarantee safety or security once they are not actively being moved. Likewise, positioning them close to the firing line or in the audience area increases the risk of accidents and dangers, contradicting best practices in handling such explosive materials. Thus, the emphasis on a secure storage location reinforces the necessity of safety protocols in fireworks operations.