Oliver Carlyon | Fieldfisher
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Professional background

Professional background

I specialise in advising clients in connection with investigations, with a particular focus on inquests, public inquiries, and health and safety matters.

I also advise clients on regulatory obligations arising under the Online Safety Act and the EU Digital Services Act.

I have extensive experience guiding clients through high-profile and sensitive matters, providing strategic and practical support throughout complex investigations.

My significant matters include:

  • The inquests into the London Bombings of 7 July 2005
  • The Lakanal House fire inquests
  • The Inquests into the Hillsborough Stadium Disaster
  • The Independent Inquiry into Child Sexual Abuse
  • The Grenfell Tower Inquiry
  • 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
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.

Authored pieces

All Resources
Public & Regulatory
Insight

Ofcom’s consultation on preserving child data — what you need to know

07.10.2025
On 16 September 2025, Ofcom launched a consultation on proposed updates to its Online Safety Information Powers Guidance, following the introduction of the Data (Use and Access) Act 2025 ("DUAA"). These updates are particularly relevant to regulated social media platforms and online search services and mark a significant shift in how data linked to children’s online activity is preserved during coronial investigations.
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A gaming setup in a dimly lit room featuring a desk with a large monitor, keyboard, and mouse. The screen displays a futuristic game. Surround sound speakers, headphones, and a gaming chair are also visible, all bathed in pink and blue ambient lighting.
Public & Regulatory
Insight

UK law in the era of global platforms: how does the Online Safety Act impact non-UK companies?

29.08.2025
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Close-up of a stylized, colorful circuit board with neon pink and blue lines and patterns on a dark purple background. The design features intricate pathways that create a dynamic, futuristic visual effect, resembling electronic circuitry.
Public & Regulatory
Insight

AI in Investigations: Smarter, faster — but handle with care

07.08.2025
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Public & Regulatory
Insight

Changes to the Regulatory Reform (Fire Safety Order) 2005 – A guide for Responsible Persons in England and Wales

15.04.2024
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Public & Regulatory
Insight

Who does fire safety legislation apply to in England and Wales and what is a Fire Risk Assessment?

15.04.2024
Drawing on experience advising one of the UK's largest Fire and Rescue Services in relation to fire safety compliance, in this blog our expert Regulatory lawyers Oliver Carlyon and Lee-Anne Beer take a closer look at the legislative framework for fire safety in England and Wales, who the 'Responsible Person' is and some of the key changes introduced under Section 156 of the Building Safety Act 2002 in relation to carrying out a fire risk assessment.
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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.