Having trained at Weightmans in 2006, Dewi has worked in the Regulatory Department and was recently promoted into the Partnership.

An experienced health & safety lawyer, Dewi has been ranked for a number of years as a “Star Associate” in Chambers and his reputation with peers and clients continues to grow. He specialises in work in the criminal and coronial jurisdictions. His main focus now is assisting public sector organisations in post-death investigations, managing regulatory enforcement action and representing clients at inquests.

He provides advice and representation to a range of household-name clients such as: Shell UK Oil, E.On, Merseytravel, Cammell Laird, Cheshire East Council, Mouchel UK Plc, Kimberly Clark Ltd, Wirral Metropolitan Borough Council, Emcor UK Ltd, Blackpool Coastal Housing Ltd, and Stonyhurst College.

As a former Executive Committee Member of the Health & Safety Lawyers Association for many years, he was involved in shaping the Guidelines on Sentencing for Corporate Manslaughter and continues to regularly present to a number of regional health & safety focus groups and public sector forums.

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Insights Root Cause Analysis Investigations - A short guide to effective report writing

A root cause analysis investigation is an investigation undertaken to establish the originating causes which have led to a death or an avoidable…

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One client praises his "very quick understanding of our requirements and very clear, timely response." Chambers & Partners 2018

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One client praises his "very quick understanding of our requirements and very clear, timely response."

Chambers & Partners 2018

Dewi Ap-Thomas is sought after for his abilities defending clients facing criminal prosecution for alleged health and safety breaches. Commentators say: "He's full of energy, authoritative and very good at his courtroom craft. He seems to be very unflappable and is very tough."

Chambers and Partners 2017

Dewi Ap-Thomas is singled out for his specialist knowledge in health and safety, being described as a “talented young lawyer” who "produces excellent work and is always able to provide quality advice”.

Chambers and Partners 2015

Following post-death investigation training, a client commented......"Dewi and the Weightmans team provided valuable training for our company which ensured our objectives were met in all regards. Dewi and the team created the training materials and worked closely with ourselves to make them realistic, informative and credible to their audience which further improved the value of the training."

Babcock International
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