Gas Safety Expert Witness & Investigation

Technical clarity in complex investigations

When a serious incident occurs, establishing what happened can require more than a review of documents or an initial site assessment. It requires experienced technical judgement.

CORGI provides independent investigation and expert support where gas, carbon monoxide, building services or other safety-critical systems may be involved. Our specialists help clients examine the evidence, understand potential causation and develop a clear, technically robust picture of the events under investigation.

Our work has supported Police investigations, regulatory bodies and legal proceedings, including major incidents, fatal carbon monoxide cases and work connected to the Grenfell investigation.

The circumstances vary. The standard of technical scrutiny does not.

Incident investigation

Our investigators bring together practical engineering experience, technical analysis and a detailed understanding of safety standards and real-world system behaviour. We can support investigations from the earliest stages, helping to preserve and examine technical evidence, assess installations and equipment, review documentation and explore potential causes. Our work can include:

Site and installation investigation

Detailed examination of gas systems, appliances, pipework, ventilation and associated technical factors.

Carbon monoxide investigations

Specialist support in cases involving suspected or confirmed carbon monoxide exposure, including fatal and non-fatal incidents.

Technical causation analysis

Careful assessment of the available evidence to help establish how an incident may have occurred and which factors may have contributed.

Document and evidence review

Review of certificates, maintenance records, inspection findings, technical documentation and other relevant evidence.

Independent technical reporting

Clear, structured findings designed to support investigators, legal teams and decision-makers.

Expert witness services

Complex technical cases need evidence that can withstand scrutiny.

Our specialists provide independent expert opinion grounded in extensive industry experience and a careful examination of the facts. We support Police investigations, legal disputes, coronial processes and other proceedings where specialist gas safety or technical knowledge is required.

Our role is to explain complex technical matters clearly, objectively and without unnecessary ambiguity.

That may include reviewing evidence, preparing expert reports, commenting on standards and workmanship, examining potential failures and helping those involved understand the technical significance of what has been found.

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Experience in the most serious circumstances

CORGI's technical specialists have supported investigations involving some of the most difficult and sensitive incidents in the sector.

Grenfell

CORGI technical expertise was called upon in connection with the Grenfell investigation, supporting the examination of gas safety and associated technical matters arising from one of the most significant building safety tragedies in recent history.

Police and major incident investigations

Our specialists have worked alongside Police forces and other investigating authorities on serious gas-related incidents, providing independent technical analysis and expert support where establishing the facts is critical.

Carbon monoxide incidents

Our experience includes the investigation of fatal and non-fatal carbon monoxide incidents across domestic and other environments, helping investigators understand potential sources, system failures and contributing factors.

Legal and regulatory proceedings

Our team also provides expert technical input in disputes, enforcement matters and other proceedings where evidence needs to be independently examined and clearly explained.

Expertise built over decades

The strength of an investigation depends on the quality of the people carrying it out.

CORGI's team includes experienced gas engineers, technical consultants, qualified incident investigators, auditors and expert witnesses with careers spanning operational engineering, regulation, quality assurance and complex technical consultancy.

That depth allows us to look beyond the obvious.

We understand how systems are designed, installed, maintained and used. We understand how standards apply in practice. And we understand how individual technical findings fit into the wider context of an incident.