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Harry Vann

Call 2003

"A very strong advocate who is excellent with clients. He's a superb barrister."
(Chambers & Partners 2022)

Criminal Regulatory & Environmental

Health & Safety

Harry acts for companies and individuals in the most serious health & safety prosecutions, including corporate and gross negligence manslaughter.  He has acted for all sizes of business, from sole traders to Plcs, across a wide spectrum of industries, encompassing all aspects of construction, transport management, work at height, electrical installation, swimming pool management, farming, caravan sites, asbestos, care homes and commercial baking.

Harry successfully represented the employer in the Bosley Mill explosion prosecution, led by Dominic Kay KC, and this year, also led by Dominic, successfully secured the acquittal of manslaughter of the Managing Director of Alutrade Limited.  He is briefed in three more manslaughters in the forthcoming year.


Harry is widely experienced in Fire Safety matters, having represented a number of individuals and corporates alike in prosecutions under the Regulatory Reform (Fire Safety) Order. He was instructed in the Grenfell Inquiry. He has extensive experience in appeals against Enforcement Notices served under the FSO and achieving the best possible outcomes in high profile cases.

Food Safety

Harry has broad experience in food safety matters, with clients ranging from individual publicans to large catering companies to nationally recognised chain restaurants.

Consumer Protection

Harry’s practice in consumer protection is growing, in particular, in representing businesses investigated and prosecuted for under-age sale of knives, contrary to s.141A of the Criminal Justice Act 1988.


Harry is experienced in a very broad range of environmental issues, again appearing for both companies and individuals in connection with prosecutions as wide ranging as the discharge of waste into waterways in the north and the destruction of protected species habitat in a multi-million-pound development on the banks of the Thames. He has recently been instructed for one of the national water companies.

Selected Cases

  • HSE v. GEL (2022, Preston Crown Court)
  • R. v. Alutrade Limited & Ors (2022, Wolverhampton Crown Court)
  • R. v. WTL [2021] EWCA Crim 618
  • HSE v. Fullwood Care Limited (2021, Liverpool Crown Court)
  • HSE v. DJT Surfacing Limited (2019)
  • Hertfordshire County Council v. McMullen & Sons Limited (2019)
  • HSE v. Willmott Dixon [2012] EWCA Crim 1226
  • HSE v. Tangerine Confectionery Limited & Anr [2011] EWCA Crim 2015
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“A counsel who has a strong grasp of the issues and an ability to deliver a strong performance.”

Chambers & Partners, 2024

“Harry is a top performer. With his impressive intellect, he explains issues in direct terms for the benefit of clients who always find him a reassuring presence and a strong advocate.”

Legal 500, 2024

“Harry has a commanding presence both in conference and in court, and clients and judges listen when he speaks. His written advices are superb. He will go far.”

Legal 500, 2024

“A very strong advocate who is excellent with clients. He’s a superb barrister.”

Chambers & Partners, 2022

“An incredibly intelligent and very engaging advocate.”

Chambers & Partners, 2022

“His attention to detail is excellent and he’s a strong advocate.”; “He’s excellent on his feet and his subject knowledge is astonishingly good.”; “He’s a calm, thoughtful and organised barrister. I have been impressed by his cross-examinations and he’s very analytical.”

Chambers & Partners, 2021

“Harry has an exceptional ability to identify the significant issues that are key to achieving the best outcome. He produces very effective strategies and clients warm to him easily.”

Chambers & Partners, 2020

“Leading Junior”

Chambers & Partners, 2014, 2013, 2012

“Runs complex arguments with panache”

Chambers & Partners, 2013

This “charming performer” is praised for his “wonderful courtroom style”.

Chambers & Partners, 2012

“Leading Junior”

The Legal 500, 2011

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