Tripod Beta Analysis in Incident Investigation


The tripod method is a way of conducting incident analysis. It is mostly used for high risk, complex incidents, since it is a very extensive and detailed method. In order to construct an effective tripod beta investigation and analysis, training is highly recommended.

A Tripod Beta tree is built in three steps :

  1. The first step is to ask the question: what happened? All the events that happened in the incident are listed as a chain of events.
  2. The next step is to identify the barriers that failed to stop this chain of events. The question that is asked in this step is: How did it happen? When all the events and the failed barriers in between are identified, the reason for failure of these barriers is analyzed.
  3. The last question for this step is: Why did it happen? For each of the failed barriers, a causation path is identified.

  • Tripod Beta history
  • Theory concept
  • Tripod development background and basic philosophy
  • Development of effective incident report from past event
  • Hands-on Investigator 3 software (trial version)
  • To understand the principle of accident and how an accident can be prevented.
  • To understand the essential elements involve in an accident.
  • To understand the principle of incident and accident investigation.
  • To be able to carry out an effective incident investigation.
  • To be able to analyse an incident using a Tripod Beta method.
  • Currently available for in-house training only.
    • Duration:
    • 2 days of training
      • HRDF Claimable:
      • SBL Scheme