Sonn Macmillan Walker is one of the largest firms of specialist criminal defence solicitors

Unmatched legal representation. Listed in The Times 250 Best Law Firms 2023. Our lawyers will leave no stone unturned in their commitment to your case.

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Our People

Arrest helpline

We’re here for you 24/7 so if you, or someone you know, have been arrested, give us a call straight away. The sooner one of our defence solicitors get to work, the better it will be for you. Although based in London, we’ll get to you wherever you are.

020 7481 9157

"SMW are an exceptional team who offer a diverse, collaborative and extremely high quality skill set across the range of legal professionals and support staff."

Legal 500 Rankings 2023

"After my previous experience of law firms, it is refreshing to be treated so well and I will have no hesitation in recommending your services in the future. Thank you."

Client, 2022

"The team are excellent on general crime matters and offer a level of service comparative to the best private crime firms. They are particularly good with complex, document-heavy Crown Court litigation and excel at client care."

Legal 500

"The team at Sonn Macmillan Walker are second to none. They strive always to achieve the very best results and are able to do so through their hard work and commitment to clients."

Legal 500

"Hands on service, really conscientious across the entire firm, including paralegals. Very personable, intelligent lawyers. Collaborative approach with counsel. Well resourced."

Legal 500

"SMW is a great firm, with great staff (from receptionists to partners). They really care about their clients and go above and beyond to ensure each client understands what is happening at every stage of the investigation process. "

Legal 500

Notable Cases

Take look at recent cases that we have been working on.

Insights

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About us

Our lawyers will leave no stone unturned in their commitment to your case

Sonn Macmillan Walker was founded in 1992 and is a leading firm in the fields of criminal defence and extradition. Ranked in both Chambers and Partners and the Legal 500, our lawyers are committed to providing the best possible representation to our clients.

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