"Katherine has a great eye for detail and is also incredibly approachable."

Chambers & Partners, 2022

"She is down to earth, hot on the law and easy to work with."

Chambers & Partners, 2022

“Katherine Tyler is another superb asset to the team. She is wonderful to work with, with an excellent personable manner and is very bright with a great insight into cases.”

Legal 500 UK 2022

"She has a breadth of experience as an advocate and very good subject matter knowledge."

Chambers UK 2021

Katherine is a legal counsel in the criminal litigation team where she specialises in extradition and investigations with a cross-border element particularly those involving allegations of human rights abuses or environmental harm. Katherine leads on Business and Human Rights and is co-chair of the firm-wide group.

Extradition and Interpol

Katherine has significant experience representing requested persons and foreign governments in relation to extradition requests from both within and outside the EU. Her experience of government work gives her a unique insight that enables her to offer pragmatic and practical advice to clients. Katherine has a track record of defending persons subject to high profile, sensitive requests that are often politically motivated or part of a broader campaign against an individual. In such cases which can often play out very publicly and across multiple jurisdictions with multiple increasing pressures Katherine regularly works alongside colleagues in our International Protection team to assist clients and to deliver the careful, strategic management such cases require.

Modern Slavery and Business and Human Rights

Katherine’s other areas of practise include modern slavery related issues and business and human rights, in particular where these issues cross-over with potential criminal liability or investigations. Katherine is recognised as a thought-leader in the field of Business and Human Rights and is a founder and co-chair of the Business and Human Rights Practitioners’ Network. Her work in this sphere has included advising individuals in modern slavery investigations; acting in a high profile, multi-jurisdictional, independent review into allegations of a leading charity’s involvement in human rights abuses and most recently advising on a proposed mandatory UK human rights due diligence law for the CORE Coalition. Other relevant work has included advising NGOs and law firms on issues of corporate responsibility and liability for human rights abuses and environmental harm. She is a regular contributor to consultations convened by the UN Business and Human Rights Working Group.

Publications, press highlights, speaking engagements & Blogs


Professional Memberships and societies


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.


When an individual or company is faced with a criminal or regulatory investigation we manage every step of the process.

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.


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

International Crime and Extradition

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

Criminal Litigation

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

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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Cross-Border Criminal Law Conference 2022: Individual and Corporate Accountability for International Crimes

Corporate and individual accountability for international crimes: Kingsley Napley hosts second International Criminal Law Conference

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)

Modern Slavery Act 2015: Under Review

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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