Private Investigation
5 Minute Read

Investigators and Security Consultants - what's the difference?

Written by
Ron Harrison
Published on
April 10, 2026

So, what is the difference between a Private Investigator and a Security Consultant?


At Surelock we are both, we have spent many years recruiting experts in their various fields to assist with all the services we offer, for the benefit of our clients we offer both an investigative and security consultancy service - https://www.surelock.org/about-us

We or our team are members of: -
The Association of British Investigators (ABI)
The World Association of Detectives (WAD)
Ex Police in Industry and Commerce (EPIC)
The Anti-Counterfeiting Group (ACG)
The Association of Security Consultants (ASC)


There are many such associations, but these are a selected few that cover the work that we do, gives us credibility, professionalism, integrity and a network of other professionals.

Private Investigator:
Focus: Investigating past events to uncover facts and information


Activities: interviewing witnesses and suspects, researching public records, performing background checks, and gathering evidence for legal or personal matters, compiling detailed reports of our findings


Conducting surveillance: Investigating a case of suspected infidelity, verifying a person's background, or finding a missing person


Company Infiltration: If you suspect there is an inside threat to your company then Surelock’s company infiltration services will investigate and gather any evidence you may need to resolve the matter

Reactive: responding to a specific need or situation after it has occurred, fraud, theft or high value burglary


Brand Protection: one of the most pro-active and successful companies in the UK, identifying locations selling our clients counterfeits, gathering intelligence and evidence to report to the respective authorities for enforcement action


• Mystery shopping / test purchasing: Gain valuable customer feedback and improve your business performance with Surelock's Mystery Shopping and Test Purchasing Services.


Skills: Experience, credibility, strong investigative, research, and analytical skills are crucial


Our investigators are some of the best in UK with a proven history of working in the police and specialist departments at Scotland Yard.

Security Consultant:
Focus: Assessing and improving security systems and procedures, our security survey process involves a meticulous examination of your premises, identifying potential risks and vulnerabilities. With our expertise, we provide actionable recommendations to enhance your security measures


Activities: Conducting security audits, developing security policies, identifying vulnerabilities, recommending security improvements, and providing training


•Example: Analysing a company's physical security, advising on cybersecurity measures, or developing emergency response plans.


•Proactive: We aim to prevent security breaches before they happen, advising on greenfield sites and locations.


Penetration tests: we offer thorough security reviews and penetration testing to uncover potential vulnerabilities in your physical setup. From the perimeter to the inner rooms, we assess every layer of protection, ensuring your systems are not just in place but functioning as intended


Planning for Martyn’s Law: Get expert help from Surelock to prepare your premises under the Terrorism (Protection of Premises) Act 2025. Stay safe, secure, and fully compliant, presentations, consultations, guidance and implementation


•Skills: Experience, strong analytical, problem-solving, and communication skills are important.


Our senior security consultant Stewart Brown has many years experience, gained while working in the Police and for the Home Office both in UK and overseas, he is a long standing member of the Association of Security Consultants


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

In essence, private investigators are detectives who investigate past and present events, while security consultants are advisors who help clients improve their future
security.

We provide our services to:
Public and Private Sector Clients
Private Client Services
Legal Proceedings

Our costs - We work strictly to an hourly rate, no hidden costs, our fees are £80 per hour for such services.

If you need our help or advice do not hesitate to make contact, we are happy to discuss your needs and help you decide

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Private Investigation
Ron Harrison
Managing Director

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