Lead Accident Investigator – Online Course

Online Training to Lead Effective Accident Investigations

This IIRSM-approved course explains how to structure and lead accident investigations that uncover root causes and deliver meaningful improvements in safety performance.

The multi-module course equips users with the knowledge and tools to lead investigations with confidence – from securing the scene and collecting evidence to interviewing witnesses and analysing data. Users will learn how to investigate accidents using a constructive, evidence-led approach that reveals underlying issues within safety systems. This insight enables targeted improvements that prevent repeat incidents and can often be applied in other areas to proactively reduce risk.

Why is Lead Accident Investigation Training Important?

In many organisations, workplace accident investigations focus on identifying immediate causes rather than understanding why the incident occurred. Without a structured methodology, investigations risk becoming superficial – overlooking critical evidence, misinterpreting contributing factors, and ultimately failing to address the systemic issues that enable accidents to happen.

This course is designed to support those responsible for leading accident investigations. It provides the practical knowledge, structure and techniques needed to move beyond surface-level conclusions and ensure each investigation becomes a driver for measurable, organisation-wide improvement.

Learners will gain the skills to secure scenes, gather reliable evidence, conduct effective interviews, and analyse contributing factors. This foundation enables them to identify the true causes of accidents and develop targeted, proportionate actions that reduce risk, prevent recurrence and support wider improvements in safety performance.

Training You Can Trust

• Approved by IIRSM
• Aligned with UK Legislation
• Certificate on completion
• Developed by health and safety professionals

Who is the Course Suitable For?

• Health and Safety Officers
• Line Managers and Supervisors
• Facilities and Operations Managers
• Lead Investigators and Internal Auditors
• Contractor Safety Coordinators
• Risk and Compliance Specialists

Course Content

This course contains the following modules:

• Module 1 – Introduction to Accident Investigation
• Module 2 – Accident Causation & Human Factors
• Module 3 – Immediate Actions & Planning Investigations
• Module 4 – Data Collection: Principles
• Module 5 – Data Collection: Interviewing
• Module 6 – Data Collection: Timelines
• Module 7 – Data Analysis
• Module 8 – Developing Corrective Actions & Recommendations

What You’ll Learn

• Legal responsibilities and the role of lead investigators in workplace accidents
• Structured investigation methods from initial response to final recommendations
• Techniques for collecting physical evidence, documents and witness accounts
• Frameworks for analysing human error and unsafe acts in context
• Tools for identifying root causes and preventing repeat incidents
• Approaches for developing corrective actions and promoting organisational learning

Available in 20+ Languages

Course subtitles are available in multiple languages, including:

• French
• Dutch
• German
• Italian
• Spanish
• Polish

Assessment

Users must complete a final theory test before earning their certificate.

The end-of-course test is:

• Fully online
• Multiple choice

A score of 80% is required to pass.

Approved by IIRSM