Katherine joined Kingsley Napley in 2013 from 9 – 12 Bell Yard Chambers where she specialised in extradition and crime. Whilst at the independent bar Katherine was described by Chambers UK 2013 as “up and coming” in the field of extradition law, as “brilliant” and “a force to be reckoned with in the appeal courts.” 

Katherine specialises in extradition and has significant experience representing and advising requested persons and foreign governments in relation to requests from both within and outside the EU. She has appeared as an advocate at all levels from the Magistrates’ Court to the Supreme Court. Katherine's detailed understanding of human rights law and national and international developments in this area mean that she is able to provide helpful and practical advice to clients.

Her past experience acting on behalf of prosecution agencies, including the the CPS and FCA, makes Katherine well placed to offer specialist and tactical advice to those facing criminal charges and informs her advice in respect of private prosecutions and regulatory allegations.

Katherine is well recognised in the field of Business and Human Rights and is a founder and co-chair of the Business and Human Rights Practitioners’ Network. Katherine’s experience in this field includes working with and lecturing NGOs and law firms on issues of corporate responsibility and liability for human rights abuses and environmental harm. She has worked with and lectured NGOs and law firms on issues of corporate responsibility and liability for human rights abuses and environmental harm. These issues can also be relevant in cases brought under Modern Slavery Act and the Bribery Act; offences that Katherine has experience of defending.

Katherine's practice encompasses public law matters and she has acted in judicial review proceedings for regulators, private organisations and professional associations. She also has experience of conducting and advising on proceedings before regulatory  tribunals, particularly in professional discipline matters. 

Publications, press highlights & speaking engagements


Professional Societies and Memberships

  • Member of the Defence Extradition Lawyers Forum
  • Member of the Administrative Law Bar Association
  • Member of the Bar Human Rights Committee
  • Member of Extradition Lawyers' Association


Related Services

Proceeds of Crime and Money Laundering

Recent years have seen considerable growth in this practice area, following the introduction of new measures designed to tackle illicit finance and the increased attention of enforcement agencies.

Account Freezing and Forfeiture Orders, and Cash Seizure

Tackling illicit finance and the proceeds of crime is a government priority and law enforcement focus.

AML Compliance

Ensuring that the UK financial system is an increasingly hostile environment for illicit finances is a key government priority.

Restraint Orders, Confiscation and Third Party Rights

We advise individuals and corporates in relation to restraint orders and third party applications in respect of property caught by restraint orders.

Unexplained Wealth Orders

UWOs are used by law enforcement agencies to require an individual to prove that a particular asset was obtained through legitimate means.

Extending Moratorium Periods

Another feature of the Proceeds of Crime Act that can have the unwelcome effect of freezing property is the 'moratorium period'

International Protection

Our International Protection group offers comprehensive multijurisdictional advice from our specialist immigration, criminal and public law teams.

Political Affairs

Our international work includes dealing with the suite of issues that may arise from politically motivated persecutions.


An Interpol Red Notice can severely inhibit a person’s liberty, and have drastic consequences for a person’s reputation. We can assist in Red Notice cases by engaging with Interpol either prior to or following the issue of a Red Notice.

Criminal Litigation

Our criminal lawyers are astute, supportive and highly sophisticated, particularly known for providing strategic, sensible and practical advice.

International Crime and Extradition

Criminal law is increasingly an international concept with cross-border implications. Knowing your rights and options is essential.


Kingsley Napley has a wealth of experience in successfully defending extradition requests having worked in this field for several decades.

Business and Human Rights

Consumers and regulators increasingly expect companies to demonstrate a commitment to human rights, where companies fall short, they increasingly face both reputational and legal consequences.

Private Prosecutions

Private prosecutions provide a useful legal remedy for companies, regulators and individuals to pursue criminal proceedings.

Judicial Review

We are known for our notable strengths in judicial review litigation and our incisive and pragmatic advice.

Public Law

Our 'exceptional' team has over 25 years' experience, acting in the most significant public law cases.

Insight from Katherine

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Business and Human Rights: Magnitsky clause now in force

The Magnitsky Clause Part 2: Profiting from the suppression of those who seek to assert their human rights?

The Magnitsky Clause Part 1: Profiting from the suppression of whistleblowers – what does it mean for business?

Dutch businessman sentenced to 19 years for arms trafficking and war crimes

A new criminal offence for corporates that fail to prevent human rights abuses?

Prosecuting companies for crimes against humanity

International Criminal Court asked to investigate corporate actors for crimes against humanity linked to Australia’s detention regime

The Ministry of Justice consults on lightening the regulatory load for Alternative Business Structures (ABS)

Case Update: High Court considers the power of a regulator to refer back to its Investigating Committee fresh allegations arising from the same facts as allegations already considered and referred by that Committee

Case Update: a new test for dishonesty in disciplinary proceedings?

Having the freedom to speak up - whistleblowing within the NHS

Regulatory Press Round-Up: February 2014

Case Update: Quinn v Bar Standards Board, Visitors to the Inns of Court, 25 February 2013

Case Update: R. (on the application of Scholten) v General Medical Council [2013] EWHC 173 (Admin)

Press Round-Up: Regulatory and Professional Discipline. June 2016 – July 2016

Case Update: Christopher Cronin V Greyhound Board of Great Britain LTD [2013] EWCA Civ 668

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