Adopt defensive tactics until the utility system is isolated

Control Measure Knowledge

If utility systems have been tampered with it may not be possible, or it may be too hazardous, for personnel to isolate them. Assistance will be required from the relevant utility supplier or competent person to make the system safe.

If the gas supply system may have been subject to illegal activity, cordons and controls appropriate for explosive atmospheres should be applied.

In the interim, personnel should adopt defensive tactics and ensure all emergency responders are made aware of the presence of a potentially hazardous utility system.

Strategic Actions

Tactical Actions