Having carried out the dynamic risk assessment and established a tactical mode, an incident commander should be aware of the immediate hazards, who is at risk and the control measures necessary to protect them. This assessment should determine the reasonably practicable measures that personnel should take to control the risk.
This initial assessment now forms the basis of a more detailed incident risk assessment known as an analytical risk assessment (ARA). This should be completed and recorded on all occasions when the recorded dynamic risk assessment is not sufficient.
See the Health, Safety and Welfare Framework for the Operational Environment.