Good preparedness and response planning and activities are essentially important for disaster risk reduction or mitigation in the next cycle of hazard spectrum. The very strict post incident audit must be perform as a prerequisite for the mitigation of the consequences in the next disaster cycle.

Post incident audit involves conducting an assessment of the management of the incident to identify lessons learned. By definition, audits are an independent assessment and evaluation of an institution's activities.

The purposes may include gaining an understanding of the service’s/ organisation’s operations, evaluating the adequacy of the control structure for potential key issues and areas of concern, providing on-going feedback to management, validating and reviewing data for completeness, accuracy, and authorisation, benchmarking, or assessing a data centre for security, operations, application maintenance, and system implementation.

Post incident audit is made in all phases of disaster – preparedness, response, rehabilitation and recovery. The main goal is to identify strengths and weaknesses, to corrects the possible mistakes and to improve preparedness and mitigate the consequences in case of other disasters.