Kate Kelleher

Year of call: 2000

‘Katherine is the most gifted jury advocate. Her ability to develop a rapport with a jury is second to none. She is also particularly adept at dealing with vulnerable clients. Her client care is phenomenal.’
(Legal 500 2026)

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Kate’s practice comprises, criminal defence work and some environmental crime. She also appears as an advocate in regulatory hearings before the Nursing and Midwifery Council.

Kate has appeared in the Criminal Courts up to and including the Court of Appeal.

As a duty-advocate she has represented suspects under arrest at various police stations and for most offences including murder, kidnap and rape.

Her work as Counsel, and her scientific background, have given her expertise in forensic pathology as well as medical jurisprudence.

She is adept at understanding complex and key issues of law and can quickly attach the critical areas of relevant law immediately to the case. She is known for being tenacious and hard working, with a good sense of humour. She displays patience with the lay client, taking time to ensure they are confident with the defence and sympathetic to the difficulties associated with the proceedings.

Expertise

Complex & Organised Crime Inquests & Public lnquiries

Financial & Corporate Crime Murder Violent Crime

General Crime

Proceeds of Crime, Asset Forfeiture & Financial Compliance Regulatory

Notable Cases

R v M, Feb  July 2025  Murder CCC led junior  8 handed multi-handed drug shooting

 client 17 at time of offence, 18 when at time of conviction  defenc.e of lack of knowledge re authenticity oweapon, MDS issues, coercion. Cutthroat defenc.e from 3 co-defendants.

v M2024  2025  Winchester CC  junior alone, Conspiracy to supply Class A, part of multihanded ring across England  Crown offered no evidence prior to trial on submissions as to public interest.

v ACCC  January 2024  conspiracy to supply class  3rd listing for trial  (jury discharged on two previous trials) Crown offer no evidence on second day following crossexamination oOIC on investigation.

v B-S July 2024, Oxford CC  junior alone, Blackmail, kidnapping. Crown offer no evidence offered following legal argument on Stage 3.

R v S, October 2023 – January 2024 – Winchester CC  leading junior in multi-handed murder trial  client charged with assisting an offender over period of days. Acquitted. (Convictions on the murder charges).

R v F, July 2024  Southampton CC  junior alone  Conspiracy to supply Class – Crown offer no evidence following legal submissions on Stage 3 delays.

Professional Testimonies

Katherine is the most gifted jury advocate. Her ability to develop a rapport with a jury is second to none. She is also particularly adept at dealing with vulnerable clients. Her client care is phenomenal.

Legal 500. 2026

Katherine is reassuring in con and on paper. Her knowledge of criminal law is outstanding.

Legal5002025

Seminars & Events

Brian has a strong track record of being instructed in a wide variety of high value frauds (multi million pounds).

Conversant with the needs of high net worth clients.

Particular experience in Very High Cost Cases.

Extensive experience of Proceeds of Crime Act cases.

Extensive experience of all types of VAT and Benefit frauds.

Recent cases include:
R v S – Southwark Crown Court, multi-million pounds money laundering.
R v P – Central Criminal Court, multi-million pounds bank fraud.
R v A – Birmingham Crown Court, represented the organiser of a large-scale sham marriage operation.
R v M – Birmingham Crown Court, a multi-million pound VAT fraud.
R v K – Leicester Crown Court, £4 million mortgage fraud.
R v B – Canterbury Crown Court, large scale document fraud which facilitated the fraudulent entry of 110 persons into the UK.
R v H – Southwark Crown Court, a £28 million VAT fraud.
R v K – Harrow Crown Court, Local Authority fraud committed by a senior manager.

Historic cases have included:
£1million fraud from a national supermarket chain in which a transvestite manager embezzled the money to fund his proposed sex change and his alleged prostitute mistress.

Carousel frauds, involving monies in excess of £10 million. R v P Leicester Crown Court, £5 million MTIC fraud.

Wider Engagement

Appointments Memberships Member of the CBA 2000  present

Director of Environmental Compliance Online Limited  2012  2025

Duty Advocate  Dual Qualification conferred by the Bar Council and LSC (Dual Capacity) (from 2012 onwards)

Director  Environmental Compliance Online Limited (from 2012 onwards) International Association of Irish Lawyers  Chairperson 2007  2012