Rachel provides a range of crisis management services to individuals and companies, based in the UK and overseas. She has significant expertise in criminal tax litigation and in cases involving fraud, insider trading, anti-trust offences, money laundering and bribery. She is also experienced in dealing with matters involving foreign and cross-border investigations, including requests for mutual legal assistance, extradition and INTERPOL Red Notices.

Rachel regularly acts for corporations, politically exposed persons (PEPs) and high-net-worth individuals, including those who are subject to multi-jurisdictional investigations.

Rachel has considerable experience in a range of serious and general crime cases, from those involving sexual offences, coercive and controlling behaviour, violent crime and drug allegations to public order, forgery and harassment. She has a track record in successfully persuading investigative and prosecuting agencies to drop their cases at an early stage. Her experience has included highly sensitive work on behalf of UK security operatives.

Rachel is recognised as 'Up and Coming' in Chambers 2026 (Financial Crime: Individuals):

"She has an interesting blend between being very calm and sensible, but not afraid to take the gloves off and fight. She is very good."

"Rachel is an incredible lawyer. She provides excellent client care and provides a sea of calm even in the most intense, complex and difficult of situations."

"She operates at the very top and is highly committed to her clients and work."

"She has excellent judgement and foresight, and goes above and beyond for her clients. She is simply first-class and a true asset to her firm and the legal industry."

Rachel is ranked Band 5 in Crime in Chambers 2026 Guide, with high praise including:

"If you are working with Rachel Cook, you are in the safest of hands. Her combination of tactical knowledge and client care mean she is on her way to being one of the best in the business."

"Rachel has been an amazing support and voice of calm throughout the process. She has strong analytical skills and a clear eye for strategy, combined with an excellent client manner."

"Rachel has great strategic insight. She is thorough and pragmatic, with a supportive and calm manner."

Rachel is recognised as 'Up and Coming' in Chambers 2025 (Financial Crime: Individuals):

"[Rachel] has an enormous amount of experience and a practical, common-sense, no-nonsense approach alongside a quick wit and bucketloads of intelligence."

"[Rachel] is so good with clients, so diligent and she really works to get the best outcomes for them."

"[Rachel] was incredibly pragmatic and practical. The client felt very assured with her guidance and I was very impressed with her on this matter. She understood how to provide a bespoke service."

Rachel is highly recommended in Legal 500 2026 for General Crime and Tax Investigations (VAT and indirect tax):

“Rachel Cook … shines in tax investigations.”

“Rachel Cook has an exemplary attention to detail combined with a strategic approach is a fearsome combination. Excellent client service.”

Rachel is highly commended in Legal 500 2025 (Crime: General):

"[Rachel] has a wonderful tenacity and always has a positive outlook on behalf of all her clients. She finds it easy to delegate as she knows her team with all their strengths and how to best handle all the issues that may arise."

"[Rachel] is a highly active figure noted for her capabilities in particularly sensitive cases.”

"[Rachel] has clear and commendable judgement."

Rachel is recommended by Who's Who Legal 2024 for her Business Crime Defence work for both Individuals and Corporate, and ranked as a Future Leader in the Investigations category.

Rachel has been recognised by Chambers High Net Worth Guide 2025, 2024 and 2023 (Financial Crime: High Net Worth Individuals) as 'Up and Coming', with the 2023 guide noting that she "works with lots of high net worth and high-profile clients. She is very experienced, practical and manages really well."

Rachel was also recommended by Legal 500 2023 as a key name for general crime, and by Who's Who Legal 2023 as a Thought Leaders Global Elite in Investigations. WWL noted: “Rachel Cook is credited with “in-depth knowledge of the legal framework backed by solid, technical experience”. Sources add: “She is analytical, a good communicator and provides a suitable level of empathy."

In Legal 500 2022, Rachel has been described as "an extremely talented prospect who is sensible and straight talking, she has a tremendously reassuring style. She is quick to the point and leaves no stone unturned. A huge asset on the team and set to be a significant player in due course". (Financial Services Contentious).

In recognition of her client care skills, Rachel won the Lexology Client Choice award for Investigations in 2022.

Rachel is a Contributory Editor to Lloyd’s Law Reports: Financial Crime.