Oliver Carlyon | Fieldfisher
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Professional background

Professional background

 

Overview

I am a partner specialising in inquests, public inquiries, investigations and regulatory risk, with nearly 20 years’ experience advising organisations on complex, high‑profile and sensitive matters.

I act for corporates, public bodies and technology companies, helping them manage investigative scrutiny, engage with regulators, and protect their legal and reputational position. I am particularly experienced in Article 2 inquests, statutory public inquiries and health and safety related investigations.

A distinctive feature of my practice is that I regularly advise inquiry Chairs, panels and Coroners on the conduct of investigations. This includes advising on procedure, scope, fairness, evidence management and hearing strategy in complex and high‑profile cases. This experience gives me a detailed understanding of how investigative decision‑makers assess evidence and reach conclusions, which I use to help clients prepare effectively and engage constructively with investigative bodies.

Inquests and Public Inquiries

I have acted in many of the UK’s most significant inquests and public inquiries, often involving multiple interested persons, intense public scrutiny and complex factual and legal issues. My work includes:

    • Advising organisations facing Article 2 inquests
    • Representing clients in statutory public inquiries
    • Advising inquiry Chairs and Coroners on investigative process
    • Managing disclosure, witness evidence and expert issues
    • Advising on reputational risk and media sensitivity

I am known for providing calm, strategic and practical advice throughout investigations that are legally demanding and emotionally challenging.

Online Safety and Technology Regulation

I also have a growing specialism in online safety, platform regulation and digital risk. I advise global technology companies on regulatory obligations arising under the Online Safety Act, including governance, compliance frameworks and engagement with regulators.

My work includes advising clients in relation to sensitive inquests connected to online harms, as well as providing strategic support on how online safety issues are addressed within investigative and regulatory processes.

Representative matters include:

    • The inquests into the London Bombings of 7 July 2005
    • The Lakanal House Fire inquests
    • The Hillsborough Stadium Disaster inquests
    • The Independent Inquiry into Child Sexual Abuse
    • The Grenfell Tower Inquiry (supporting the London Fire Brigade)
    • The inquests into the deaths of Anthony Walgate, Gabriel Kovari, Daniel Whitworth and Jack Taylor
    • The Brook House Inquiry
    • The UK Covid‑19 Inquiry
    • The Horizon IT Public Inquiry (acting for the Post Office)

 

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Awards & recognition

Awards & recognition

Chambers and Partners
Public Inquiries

Oliver is super smart and effective.

Chambers and Partners
Public Inquiries

He is pragmatic, sensible and completely unflappable.

Chambers and Partners
Public Inquiries

He brings a very wide range of experience on inquiries and inquests.

Chambers and Partners
Public Inquiries

Oliver rises to any challenge and remains solution-focused throughout.

Chambers and Partners
Public Inquiries

​​​​​​Oliver always stays extremely calm under great pressure and is extremely competent in very complicated cases.

Chambers and Partners
Public Inquiries

Oliver is extremely bright and a superb lawyer with the ability to make complicated issues seem so simple.

Chambers and Partners
Public Inquiries

Oliver is very client focused, responsive and very pragmatic. He gave us very nuanced advice.

Authored pieces

All Resources
Public and Regulatory
Insight

Intimate image abuse: Ofcom's new enforcement programme and what it means for providers

16.09.2026
Ofcom has launched a new enforcement programme focused on non-consensual intimate imagery (NCII), including AI-generated content. With a key Online Safety Act measure taking effect on 30 September 2026, providers should be reviewing their controls now and ensuring they can demonstrate compliance.
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Public and Regulatory
Insight

Gaming product updates: when does the OSA require a new risk assessment?

07.09.2026
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Public and Regulatory
Insight

Ofcom publishes its register: what categorised services must do now

27.07.2026
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A close-up of a maze puzzle partially solved with a pink highlighter. The highlighter is at the edge of the maze, which has a thick, pink line marking a winding path from the center towards the top left corner.
Public and Regulatory
Insight

Children's online safety: what businesses need to know

18.06.2026
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Public and Regulatory
Insight

Ofcom raises the bar on crisis management for online platforms

12.06.2026
The difficulties of rapidly moderating harmful content during sensitive and fast-moving UK public disorder events came into sharp focus during the summer of 2025 and again in recent weeks.
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What others say…

Chambers and Partners

He is pragmatic, sensible and completely unflappable.

Chambers and Partners

He brings a very wide range of experience on inquiries and inquests.

Chambers and Partners

Oliver rises to any challenge and remains solution-focused throughout.