How to Investigate a Workplace Incident and Find the Real Cause
A poorly conducted workplace incident investigation is one of the most common failures in health and safety management.
Someone fills in a form, writes down “employee error” or “not following procedure,” and the file gets closed. A few weeks later, the same thing happens again. That is not investigation. That is paperwork.
Real incident investigation means asking why something happened until you reach the root cause. Not the surface cause. Not the easy answer. The actual reason the system failed.
What the Video Covers
In this video, I walk through the complete investigation process from first response to verified close-out. You will learn the HSE 4-Step Framework, six root cause analysis tools, including 5 Whys, Fishbone, TRIPOD Beta, and Bow-Tie Analysis, and how they connect into a single integrated workflow. The video includes a full case study working through a real overpressure incident using every tool in sequence, cross-industry application covering food manufacturing, oil and gas, construction, and aviation, RIDDOR reporting obligations, and investigation roles at every level from worker to board.
The HSE 4-Step Investigation Framework
- Gathering the information
- Analyzing the information
- Identifying risk control measures
- The action plan and its implementation
Why Workplace Incident Investigation Matters
Under RIDDOR 2013, certain incidents must be reported to the HSE. But reporting is only one part of your legal duty. You also have a duty under the Health and Safety at Work Act 1974 to prevent recurrence. That means finding the real cause, not just documenting that an incident occurred.
A weak investigation protects nobody. It gives management a false sense of closure while the same hazard sits waiting.
The HSE publishes free guidance on incident investigation at hse.gov.uk.
Who Should Use Workplace Incident Investigation Tools
This is relevant if you are a manager, supervisor, team leader, safety rep, or anyone who gets handed an incident form and told to look into it. You do not need a formal qualification to conduct a thorough investigation. You need a structured process and the right questions.
Watch the video, then come back here if you want to go deeper on any of the tools covered.
Nobody gets hurt. Everybody stays healthy.