Basic accident investigation procedures are,
Interviews, plans, photographs, relevant records, checklists.
Identifying immediate causes (unsafe acts and conditions) and root or underlying causes (management system failures).
Identifying remedial actions.
Ideally, an investigation would be conducted by someone expert in accident causation, experienced in investigative techniques, fully knowledgeable of the work processes, procedures, persons and industrial relations environment of a particular situation. However, in the real world it is normally a manager from within an organisation, supported by a member of the safety team.
It is important that whoever undertakes the investigation does so in an impartial manner. Looking for someone to blame at the start of the investigation has only one outcome - failure. The important point is that even in the most seemingly straightforward accidents, seldom is there only a single cause.
While doing an investigation special attention to be paid for the following even if it is not obvious,
Materials- Which was used by the employee
Environment - Where the person worked
Personnel - Assigned for the work.
Management - Evidence of management commitments in terms of safety.
Previous Audits
Physical evidence etc etc
Thanks,
Sam