"their strength lies in their meticulous attention to detail and the intelligence of the individuals employed by that firm. I could not imagine a better law firm."

Chambers and Partners, 2018

From accompanying clients to interviews – be they at the police station, conducted by the Serious Fraud Office, the Financial Conduct Authority or another regulator -  to managing every step of a criminal or regulatory investigation, Kingsley Napley guides individuals and companies through the options before them and advises on the best course of action to take.

Our criminal defence lawyers are highly sophisticated, astute and supportive, particularly known for their skill in providing strategic, sensible and practical criminal law advice and for the ability to keep high profile cases out of the public eye.

When criminal activity occurs it is often the business itself, rather than the police, that begins the investigation.  The internal investigation has become an increasingly common feature of the UK corporate landscape.

Whether alerted by the actions of a whistleblower, an investigation by internal audit, or by a query raised by a supplier or competitor, a company will have to examine the facts.

The decisions that companies make in response to these discoveries are rarely straightforward and can have significant financial and reputational consequences.  It is essential to obtain specialist advice. 

There have been a number of recent court decisions which highlight the challenges in establishing claims to legal privilege over an internal investigation, and the importance of managing this process at an early stage has never been clearer. 

We are adept at helping organisations manage their relationship with the relevant regulatory authorities in order to achieve the best possible outcome.

Individuals caught up in such investigations also require specialist advice as they respond to requests by their employers and investigative authorities for the provision of information through interview.  Our track-record is unrivalled. Our lawyers have advised in hundreds of interviews  and can offer the best advice on the complex issues that frequently arise.

Our lawyers provide strategic and pragmatic advice in financial services regulatory and criminal investigations, in circumstances where there is often a complex dynamic between dealing with the FCA and overseas authorities with professional regulatory or employment issues.

We are the leading criminal law firm in the UK.  We enjoy an excellent international reputation, with a network of international lawyers with whom we work on extradition and mutual legal assistance requests, and global investigations into business and financial crime.

The first indication of a criminal investigation can be a dawn raid, where the police arrive at domestic and business addresses first thing in the morning.  Officers may be there to arrest individuals or to search for, seize and retain material relevant to their investigation.  Used to dealing with unexpected and rapidly developing situations we can advise while the raid is on-going and also provide advice after the event on the lawfulness of the action and possible legal challenges.

"they have a sensational client list and do some big cases."

Chambers & Partners, High Net Worth Guide, 2019

"The ‘first-rate’ team at Kingsley Napley LLP is ‘efficient, strategic, committed and able to handle the most complex of criminal cases as well as more general crime cases’"

Legal 500 UK 2019

"The Criminal Litigation department at Kingsley Napley LLP continues to ‘hold its own against the Magic Circle firms’." 

Legal 500


Read Louise Hodges' and Caroline Day's Chapter 'Witness Interviews: The UK Perspective' in GIR's Practitioner's Guide to Global Investigations, Third Edition


Media Crisis Management

We have a long history of acting in high profile matters. When a crisis or potential crisis hits, clients and their advisors turn to us.

Dawn Raids, Search and Seizure

When subject to a “Dawn Raid”, search and seizure operation and search order you require timely advice. Our specialist lawyers can provide the assistance you require.

Tax Investigations

A tax investigation by Her Majesty’s Revenue and Customs (HMRC) could have serious implications for you and your business.

Mutual Legal Assistance

Robustly defending requests from foreign jurisdictions is not for the faint-hearted or inexperienced. Our lawyers are recognised leaders in the field.

Internal Investigations

Corporate clients require sophisticated and sensitive advice when they encounter internal crises which have the potential to escalate.

Financial Services Investigations

We provide intelligent and tactical representation to those involved in an investigation by defending accusations and mitigating risks.

Police Station Representation and Advice

Our team includes specialist police station advisers. We are proactive in achieving the best outcomes for our clients.

Public Inquiries

The team is consistently recognised for its public inquiry expertise, with over 25 years experience in all the major inquiries.


We act for witnesses at all stages in criminal investigations.

Cash Seizures, Restraint Orders and Confiscation Proceedings

We understand the importance for individuals and companies of minimising the effect of restraint and freezing orders.

Investigations Insights

View all


New police training indicates authorities believe cryptocurrency is here to stay

The SFO’s privilege battles reaches the Court of Appeal

Search Warrants: the case for reform – costs

Litigation privilege: the Court of Appeal endorses ENRC

The European Investigation Order – belatedly in force

Privilege, Confidentiality and the Challenge of Modern Technology

Reports call for higher standards of disclosure in criminal proceedings

The Trial: A Murder in the Family – The Evidence

Brexit and the general election – UK misses implementation deadline for European Investigations Order Directive

HMRC continue to clampdown on aggressive tax avoidance schemes

SRA NOT SFO: Professional obligations and s2 interviews - Law Society says do not compromise

Police Bail - Funding essential to promote real change

Anti-money laundering and social responsibility: keeping the Gambling Commission at bay

£1.9 bn investment in Cyber security: Government ramps up fight against cybercrime

Home Office desire for new anti-money laundering powers ahead of Anti-Corruption Summit

Mutual Recognition, Mutual Trust? Detention conditions and deferring an EAW

2016-17: Tackling financial crime and ensuring AML compliance a UK and FCA top priority

Launch of Office of Financial Sanctions Implementation: understanding, implementing and enforcing sanctions

National Cyber Security Centre launched: seeks to be authoritative voice on information security

Lack of data means doubts remain over efficacy of Stop and Search

Tackling Tax Evasion – Finance Bill establishes new criminal offence

What the Budget means for tax avoidance

The NCA’s Director General sets out its mission

National Crime Agency reports on UK response to money laundering

Evidence Across Borders: The increasing use of mutual legal assistance in transnational investigations

Global Criminality and Mutual Legal Assistance

"Relentless in pursuit of tax evasion and avoidance”: HMRC sets out plan to 2020

Public Account Committee hauls Google and HMRC over the coals

MPs question HMRC’s response to tax evasion, the hidden economy and criminal attacks

Holding individuals to account in financial services - unexpected shift in burden of proof

HMRC proposals for tackling off-shore tax evasion seriously flawed

No place to hide: HMRC shines a light on tax havens

Deutsche Bank £227m fine highlights the risks of signing attestations - for individuals and financial institutions

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