UK Private Investigator &
Security Consultancy
Company

As a trusted UK private investigation company, Surelock helps individuals, businesses and legal professionals uncover the facts through discreet investigations, surveillance and expert security consultancy. Backed by decades of investigative experience, we deliver clear answers when they matter most.

✓ Supporting Clients Across the UK
✓ Discreet & Confidential
✓ Experienced Private Investigators
✓ Evidence-Led Investigations

Clear Answers. Informed Decisions.

When something doesn't feel right, uncertainty can be costly. Whether you're dealing with suspected fraud, a personal matter or a potential security risk, our role is to uncover the facts and provide the clarity you need.

We take the time to understand your situation before recommending the most effective approach, whether that's private investigation, surveillance or security consultancy. Every recommendation is tailored to your circumstances, with a focus on achieving the right outcome.

No assumptions. No unnecessary work. Just trusted advice, professional expertise and evidence you can rely on.

Public / Private Sector

We work with organisations to identify risks, investigate concerns, and protect operations. From internal issues to external threats, we help you understand the situation and take the right action.

Legal Proceedings

We support legal professionals with intelligence and evidence that stands up when it matters. The role of our private investigators is to strengthen your case with clear, structured insight.

Private Clients

Personal matters require discretion. We help you make sense of situations, understand your options, and move forward with confidence. Every case is handled with professionalism and confidentiality.

Training

Prevention is just as important as response. We provide practical training that helps your team recognise risks early, respond effectively and strengthen security awareness across your organisation.

A shield to show the protection Surelock offer both publicly and privately

Public / Private Sector

Private Clients

Balancing scales

Legal Proceedings

Training

Whether you require a UK private investigator, security consultancy or specialist security training, our experienced team delivers practical, evidence-led solutions tailored to your circumstances.

"We have instructed Ron and the Surelock team for many years now and they have provided brand protection and investigatory services which have been invaluable to our company. I manage the Legal team of a luxury brand and would strongly recommend Surelock to other brand owners - they are efficient, cost effective and have a great network within the UK and globally. We trust them implicitly to handle any issues for us."

Justine Wilkie
General Counsel, Corporate Affairs and Sustainability at Alexander McQueen

Private Investigators and Security Consultancy Across London and the UK

As a leading private investigation company, Surelock provides discreet, professional support wherever it's needed.

Every case begins with understanding your circumstances, assessing risks and identifying the most effective way forward. Whether you require investigative services, surveillance or strategic security advice, every solution is tailored to your situation and delivered with complete discretion. 

Many investigations can also be carried out remotely through our online private investigation services, allowing us to support clients quickly across the UK.

Expert Guidance. Clear Direction.

You don't need to know exactly which service you need. You just need experienced professionals who can assess your unique situation and recommend the right course of action.

We'll help you:

A bullet point

Identify risks

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Understand your options

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Decide on the right next step

Discreet Surveillance Services

Surelock delivers experience-led surveillance services for private, legal, and corporate clients across the UK.

Whether you’re facing a sensitive personal situation, investigating potential fraud, or gathering evidence for a legal case, our experienced team operates with complete discretion. Using advanced technology and proven investigative tactics, we provide real-time intelligence and detailed, court-admissible reports, helping you uncover the truth with confidence.

Martyn's Law

New legislation is changing the way organisations approach public safety. Our Martyn’s Law service helps you stay compliant by identifying risks, preventing incidents, and creating safer environments.

Ensure Compliance

Stay on top of new legal duties and meet your obligations confidently.

Enhance Safety

Implement proactive systems that promote a safer workplace.

Experienced

Our Experts

Meet the talented individuals who make Surelock exceptional.

Ron Harrison
Managing Director

A totally committed workaholic and true professional, with 20 years in the private sector and 30 years’ experience as a Police Officer and Detective with Scotland Yard, working on specialist squads both in the UK and abroad.

Ron is an active member, and past President, of The Association of British Investigators and a member of The World Association of Detectives.

David Roberts
David Roberts
Online Investigator

Dave specialises in online investigations, taking down multiple infringing counterfeit products worldwide.

A bespoke service provided for our major clients.

Stewart Brown
Security Consultant

A seasoned security consultant with over 30 years experience, Home Office trained with a wealth of knowledge in Crime Prevention and Anti-terrorism.

A long standing and respected member of The Association of Security Consultants

Stewart was on the British Standards Institute (BSI) Security Services Committee for over 12 years and personally wrote the Security Consultancy and Private Investigations, Code of Practice standards that are now used regularly in the United Kingdom, as well as being involved in reviewing, updating & publishing most of the UK Security Codes of Practice and UK Security Standards in this industry.

Jake Alford
Brand Protection Director

Jake specialises in marketplace brand protection and also online investigations, test purchases both physical and online for some of our retained clients.

Moritz Gregory
Investigator

Has worked for Surelock since 2007, has undertaken a wide variety of investigations, many involving complex frauds.

Qualified in Law at university LLB (Hons)
and completed 31 years in the Metropolitan
Police as a career detective.

During his Police service he was involved
in numerous confidential, high level and protracted investigations and specialised
in covert operations and investigations.

Subsequently worked on two high profile,
Judge led, Public Enquiries and is
currently vetted to SC level.

Kevin Dupree
Investigator

Was a Police Officer for 30 years
(25 years as a Detective) working both reactively and pro-actively. During this period, he worked on many investigations including murder, firearms, drugs importation, surveillance, covert informants, and anti-corruption.

Seconded to various police units and the National Crime Agency (including its earlier formats).

Since retiring from the police in 2009, he has continued to work in investigations as an Insurance Investigator, a Security Manager for a national gaming company and 10 years on 2 long-term Public Inquiries: the Al-Sweady Inquiry and the Infected Blood Inquiry interviewing witnesses and victims.

Surelock's services have been invaluable to our company. Their expertise and professionalism have exceeded our expectations.

John Doe

CEO, ABC Company

Working with Surelock has been a game-changer for our security needs. They provide top-notch solutions and exceptional customer service.

Jane Smith

CTO, XYZ Corporation

Insights

Real-Life Case Studies

Discover how Surelock has helped clients

Success
Success Stories

Uncovering Corporate Fraud

Learn how Surelock exposed a major fraud scheme within a multinational corporation.
Security
5 min read

Preventing Data Breaches

Discover Surelock's strategies for safeguarding sensitive information and preventing data breaches.
Investigations
5 min read

Uncovering Insurance Fraud

Learn how Surelock assisted insurance companies in identifying fraudulent claims.

Frequently Asked Questions

Find answers to common questions about our private investigator and security consultancy services.

How much does a private investigation cost in the UK?

The cost of hiring a private investigator in the UK depends on the nature of the investigation, the resources required and the length of time involved. As a leading  private investigation company, we'll discuss your requirements and provide a transparent quote with no hidden costs. 

Are your private investigation services confidential?

Yes. Confidentiality is a non-negiotable for us. Whether you require a private investigator for a personal matter, a business investigation or security consultancy, your information is handled professionally and with complete discretion from initial enquiry through to case completion. 

Can I speak to a private investigator before instructing you?

Absolutely. Every enquiry begins with a confidential consultation where you can discuss your situation with an experienced private investigator. We'll answer your questions, explain how we can help and outline the next steps, allowing you to make an informed decision before any work begins.

Do you provide private investigation services across the UK?

Yes. We provide private investigation and security consultancy services for clients across the UK. Whether you need fraud investigations, corporate surveillance, brand protection or security assessments, our team can support you nationwide. Many of our investigation and consultancy services can also be delivered remotely through our online private investigation services.

How do I know which investigation service I need?

You don't need to know exactly which service you need. We'll understand your circumstances, explain your options and recommend the most effective solution. Whether you need a private investigator, surveillance or security consultancy, our team provides tailored advice. 

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