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Client Services


Obtaining video, audio or photographic evidence of malicious or inappropriate domestic or workplace actvity


Technical Surveillance Counter Measures

Also known as debugging or electronic sweeping to provide an environment free from electronic eavesdropping or bugging


Digital Forensics

Analysis of mobile telephones and computers for spyware, misuse or other illegal activity


Regional Offices

Yarm (Teesside and North East)

London (City and Home Counties)




"Technical surveillance in the private sector, a question of regulation" PI Telegraph 2012  READ 

"Keeping an eye on the undercover boss" Evening Gazette 2012  READ


Merloc Blog

Keeping an eye on things  READ



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Investigation and Security...... Welcome to Merloc

We’re here to help you obtain the information you need.

If you suspect someone close to you at work or at home may be deceiving you, the first step is to talk to us. Our expert team has over 85 years experience, and we’re here to help secure the evidence you need to make a decision about your future or to put your mind at ease.

Our initial consultation is free and there are no obligations. You’ll be able to talk through your individual situation with an expert, and be given advice on what to do next. We work with clients on domestic and corporate investigations, offering tailored support and business advice as needed.

Though we help clients in many different ways, we uncover the truth in every investigation.

You have the right to know… If you suspect it, can you afford to ignore it?


How we work:

We are a highly specialised private investigation company, providing a range of investigation and surveillance services. With offices in Yarm and London, we cover Teesside and the North East, and London and the Home Counties.  

We believe strongly in investing in advancing technology, so all operations use state-of-the-art equipment guaranteeing reliable results.


Why Choose Merloc?


Our Services:

Our services cover three main areas:

We work with clients to help them identify which solution is best for them, and all of our private investigations solutions are completely bespoke. 


If you suspect it can you afford to ignore it?

  • Should reintroduction of the death penalty be decided by national referendum or left to politicians and what would be the outcomes of both??
  • Latest news on BBC Ebola checks at airports in the UK confirms to me it's a waste of time making it voluntary.
  • Passengers entering UK even from Ebola hotspots can refuse to be screened. Do we refuse them entry or let them in? It seems very vague.
  • Come on Mr Hunt pay the NHS what they are worth and give them the pay rise they need and deserve
  • Treasure Map is a programme that allows the NSA and GCHQ to hack telephones in Germany according to Edward Snowden
  • Thoughts and prayers are with the family of murdered journalist James Foley. Hopefully his killer will be Identified and bought to justice.
  • The greatest asset of the information thief is the ignorance of the individual or organisation they are stealing it from
  • Any individual or business that believes noone will steal their information will probably find it has already been stolen
  • Hostile intelligence gathering involves OSINT. Conventional and Technical Surveillance. Computer Hacking and Staff Coercion. Are you secure?
  • Hostile intelligence gathering is actively used by organizations to keep them one step ahead of their competitor. Who is looking at you?
  • Hostile intelligence gathering is the proactive intelligence gathering on a person or organization and using that intelligence against them

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London, Westminster, Mayfair, Knightsbridge, Yarm, Teesside, Surveillance, TSCM, Digital Forensics
A quick resolution to a difficult problem (Domestic client in Switzerland).
Investigations and Security