Miss Clare Montgomery KC > Matrix Chambers > London, England > Lawyer Profile

Matrix Chambers


Specialist in criminal, regulatory and fraud law.


For the past 20 years Clare has specialised in dealing with the most demanding and difficult legal cases. She has featured in the starred category of QC’s recommended for crime and fraud for the whole of that period. Formerly a member of the Attorney General’s Panel, Clare has also been concerned in a wide range of public law and due process cases both for and against the Government. Clare was named Crime Silk of the Year in 2013 in the inaugural Legal 500 awards and was Crime Silk of the Year in the 2005 and 2011 Chambers & Partners Bar Awards; she has also twice been nominated as the Lawyer’s barrister of the year and features as one of the Stars at the Bar in Chambers & Partners Guide for 2016. She is Best Lawyers’ 2017 Fraud “Lawyer of the Year”.


CBA; ALBA: Justice.


University College London; Inns of Court School of Law.

Lawyer Rankings

London Bar > Crime

(Leading Silks)Ranked: Tier 1

Clare Montgomery KC – Matrix Chambers ‘The only way to describe her is one down from God. She can do anything.’

Specialising in cases concerning ‘particularly complex or novel legal issues’, the experienced set at Matrix Chambers defends in high-profile matters with human rights and historic criminal components, in addition to a wide range of everyday serious offences. In the “Soldier A” case in Northern Ireland, Clare Montgomery KC led Helen Law in the successful defence of a British soldier accused of the murder of IRA figure Joe McCann in 1972. Blinne Ní Ghrálaigh served as sole counsel for one defendant in the high-profile acquittal by a jury of one of the protestors who toppled the statue of the slave trader Edward Colston in Bristol. Mark Summers KC represented a man initially acquitted by magistrates in 2019 prior to the acquittal’s overturning by the High Court, for the sending a “grossly offensive” video of a cardboard effigy of Grenfell Tower burning on a bonfire – he received a suspended prison sentence after pleading guilty prior to a retrial.

London Bar > Business and regulatory crime (including global investigations)

(Leading Silks)Ranked: Tier 1

Clare Montgomery KCMatrix ChambersClare is on top of her game. What a brilliant legal brain!

Matrix Chambers is known for its high-profile work on behalf of banks, financial institutions, and corporates in complex corporate crime prosecutions and investigations, offering integrated expertise across data protection, reputation management, and asset recovery issues, as well as a dedicated regulatory investigations team. Clare Montgomery KC remains a highly sought-after counsel for serious financial crime defence and prosecution work, and acted for the FCA in its successful money laundering prosecution of NatWest, while Alex Bailin KC acts in major SFO proceedings, including defending a senior executive of Petrofac against the SFO. The ‘absolutely excellentNichola Higgins continues to expand her profile, including major instructions from the SFO and FCA, such as acting for the SFO in both R v Skeene and R v Bowers, interlinked £30m investment fraud cases.

London Bar > International crime and extradition

(Leading Silks)Ranked: Tier 1

Clare Montgomery KCMatrix Chambers ‘A silk who is on top of the law and has a commanding presence in court.’

London Bar > Administrative law and human rights

(Leading Silks)Ranked: Tier 3

Clare Montgomery KCMatrix Chambers ‘Clare has a depth and range of legal knowledge possessed by few barristers. Her productivity is unsurpassed and her advice is clear and certain.’   

London Bar > Fraud: civil

(Leading Silks)Ranked: Tier 4

Clare Montgomery KCMatrix Chambers ‘Clare has the full range of skills as she is an expert on the law, able to inspire confidence with clients and is tactically astute.’