A small firm with big cases

Mariel Irvine Solicitors is a boutique firm based in London. We specialise in data protection, employment, stress at work, inquests and inquiries. 


Acting for British Transport Police at the London Bombings Inquests and advising the force in connection with the Leveson Inquiry. BTP retained us for the Manchester Arena Inquiry also.

Providing one of the first drafts of the Scrap Metal Dealers bill. Since then we have been advising various industry parties, including the BMRA and insurers, on the meaning and effect of the Scrap Metal Dealers Act 2013.

Writing A Practical Guide to Vicarious Liability (2018) and A Practical Guide to the Scrap Metal Dealers' Act 2013 (2019). A third book on data breach litigation is under way.

Advising insurers on vicarious liability in assault claims and on policy coverage issues relating to "deliberate acts".

Bringing and defending bullying and stress at work claims for psychiatric injury, many on behalf of senior managers and executives. We have acted in claims arising out of prisons, schools, care homes, a secure children’s home and a private psychiatric hospital.

Defending numerous liability claims arising out of building sites in London on behalf of project policy lead insurers. We were nominated solicitors on the insurance policy for the Rugby Football Union’s south stand at Twickenham.

Responding to instructions from police staff associations in a number of cases concerning the Government's reform of public service pensions, including judicial review proceedings arising out of the Government's unlawful consultation on reform: R (Police Superintendents' Association) v HM Treasury [2021] EWHC 3389.

Successfully bringing and defending claims for compensation for data protection breaches and breach of the article 8 right to privacy. Mariel is a qualified data protection practitioner and the outsourced DPO for a multi national online retailer.

Advising corporate executives on how to instigate and progress exit negotiationsso as to secure a good financial settlement. 

Issuing proceedings in the Employment Tribunal for disability, sex, race and age discrimination. We have recovered compensation in most, if not all, these cases.

Contributing to the first Parliamentary Review on the legal profession which aims to share best practice among government, policy makers and business leader.

Regularly presenting at external conferences and seminars and delivering training to clients in-house.

"She is honest, realistic and positive.... She did not tell me what I wanted to hear, more what I needed to know."
Chambers and Partners 2018

"The quality of her work is superb and she is always at the end of the phone for quick advice."

Chambers and Partners 2017

She is praised for “offering very sound advice and offering an impartial view”

Chambers and Partners 2016


“She gives the kind of advice that senior police officers like – she is really sensible, and doesn’t pull her punches.”

Chambers and Partners 2015


“Skilled at assimilating complexity and able to brief others in understandable language… delivers a dedicated personal service.”    

Chambers and Partners 2014

“Mariel Irvine heads boutique firm Mariel Irvine Solicitors, which advises police authorities on a broad range of matters, including insurance and employment issues.”

Chambers and Partners 2013


“She is absolutely devoted to her clients. She is clever, quick and efficient.”

Chambers and Partners 2012


“…always approachable and available and understands police bureaucracy.”

Chambers and Partners 2011


“Diplomatic efficient and sensitive to clients needs”

Chambers and Partners 2002


“One major client praises Irvine’s legal judgement, stating that she has not lost a single case since she began working for the company.”

Legal 500 2002

Mariel Irvine featured alongside a small number of outstanding organisations in a document that looks back over a year in the legal sector and Westminster.

The main aim of the inaugural Parliamentary Review for Law and Justice is to showcase best practice as a learning tool to the public and private sector. The articles in the Review act as both a blue print for success and a template for reform.