1.Walk me through an incident investigation you led from start to finish.
Why they ask
Investigations are the core of the specialist role, and they want to see whether you dig past the first answer or stop at "employee wasn't paying attention."
How to answer
- Set the scene briefly: the task, the injury or near miss, and who called you.
- Describe securing the area and collecting evidence: photos, statements, the equipment's maintenance history.
- Name the method you used, such as five whys or a fishbone diagram, and the root cause it led to.
- Explain the corrective actions and who owned each one.
- Close with how you checked the fix stuck weeks later.

