Private investigation & security consultancy

We help individuals, businesses, and legal teams understand risk, uncover facts, and decide the right next step.

Our Mission

We know that most situations aren’t straightforward.

Clients come to us when something feels off, unclear, or potentially high-risk. Our role is to bring clarity. We take the time to understand what’s happening, what’s at stake, and what outcome you need.

From there, we guide you towards the right approach, whether that involves investigation, surveillance, or simply informed advice.

No assumptions. No unnecessary work. Just clear direction.

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. Our role 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.

Training

Prevention is just as important as response. We provide training that helps your team recognise risks early and handle them effectively.

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

Public / Private Sector

Private Clients

Balancing scales

Legal Proceedings

Training

Surelock is a leading provider of private investigations, security consultations, and training. With our team of experts, we deliver reliable solutions to protect your assets and ensure your peace of mind.

"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 investigation and security consultancy across London and the UK

Private investigation and security consultancy across London and the UKBody:

We work with clients nationwide, providing clear guidance in situations that require discretion, experience, and careful handling.

Every case starts the same way, with a conversation.

We assess what’s happening, identify the risks, and recommend the best course of action.If further work is needed, we deliver it with precision and confidentiality.

Expert guidance. Clear direction.

You don’t need to know exactly what service you need. You just need to understand your situation. We help you:

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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 Manager

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 services here.

What is your pricing?

Our pricing varies depending on the specific services you require. Please contact us for a personalised quote.

How can I reach you?

You can reach us by phone at 0333 6000 300 or by email at info@surelock.com

Our office hours are Monday to Friday, 9am to 5pm.

Do you offer refunds?

Refunds are available under certain circumstances. Please refer to our refund policy or contact our customer support for more information.

How long is the contract?

Our contracts vary depending on the type of service. Please refer to the specific service agreement for contract duration.

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