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Professional Technical Surveillance Services – UK Wide
Discreet, lawful, and expert covert surveillance operations, training and equipment — trusted by corporate, government and private clients.


What is Technical Surveillance?
Technical surveillance is an essential aspect of modern investigative and security operations. SIASS supports clients acting as their TSU.
Jul 11, 20243 min read


SIASS: Leading the Way in Technical Surveillance Support
SIASS, a premier Commercial Technical Support Unit, offers technical surveillance services to a wide range of clients.
Jul 10, 20243 min read


Understanding Technical Surveillance: Tools and Applications
Intelligence gathering using technical surveillance tools is critical. SIASS support our clients to be lawful and ethical.
Jul 10, 20242 min read


Corporate Private Investigation - Private Investigations in the Business World
Private Investigations in the Business World As the business landscape becomes increasingly competitive and complex, companies are...
Nov 30, 20232 min read


Private Investigation Glossary
As with any industry or profession, private investigators can use terms that clients may be unfamiliar with. We've compiled a few words into a private investigation glossary here to aid understanding*. If there's a term that you've heard used by P.I.s or investigators, and we haven't listed it, let us know. Happy to add to this list. Private investigation glossary Adultery: Infidelity; having sexual relations with someone other than one’s husband or wife. Admissibility: A le
Nov 15, 202310 min read


What Does It Cost To Hire a Private Investigator in the UK?
Many clients delay hiring a private investigator as they are afraid of the costs involved. Her we explain a little of what to expect.
Nov 8, 20231 min read


Securing Evidence in Private Investigations
Securing evidence in private investigations is a crucial aspect of the investigative process. Whether you are conducting an investigation...
Oct 24, 20232 min read


Using Private Investigators for Infidelity/ Cheating Investigations
What happens when you hire SIASS to investigate suspicions of a cheating partner? These investigations are often referred to as 'infidelity investigations'. Many private investigators may refer to these investigations as 'cheating surveillance', 'partner disloyalty' or 'relationship' investigations. Most of the work undertaken by SIASS is on behalf of commercial organisations, however we do have clients whom contact us to undertake infidelity investigations. Since we function
Oct 11, 20233 min read


Private Investigator Skill Set
What are the essential private investigator skills, that are required to deliver a professional, discreet and lawful service to clients?
Oct 5, 20233 min read


How To Hire a Private Investigator
Many may worry that they will be charged extortionate fees. Identifying a service provider in an can be difficult.
Sep 27, 20232 min read


Private Investigators and Legal Services
We are often asked what do private investigators and legal services do together? Much of the work we undertake in our region, is on behalf of legal services providers (see our popular services page). SIASS operators are either instructed directly by a legal firm or by a client with the consent of their legal team. Many solicitors will tell you that most legal work focuses on establishing facts. Often the facts relating to a case aren't always easy to verify. Basing legal act
Sep 11, 20231 min read


Newcastle Based Commercial Technical Surveillance Specialists - Why Choose Us?
SIASS Newcastle Covert Technical Surveillance Specialists. Learn how we can assist you to conduct lawful, ethical investigations.
Jul 26, 20231 min read


Social Engineering and Security
The dictionary definition of SOCIAL ENGINEERING, for the purposes of information security, is: “the use of deception to manipulate...
Jul 14, 20232 min read


Newcastle Private Investigator - Breaking the Stereotype
SIASS are breaking the stereotype of the traditional private investigator! We offer technical surveillance investigations, training & tech
Jul 6, 20232 min read


Background Checks
Why do people ask private investigators to perform background checks? What is a background check?
Jun 29, 20231 min read


Relieving the Pressure On Police Resources
Private intelligence agencies, such as SIASS the North East's premier commercial technical support unit, are relieving the pressure on UK police resources, local government departments and other agencies. Everyone in the UK understands that for sometime our local Governments and other agencies have been struggling for funding. Some have seen their budgets slashed during austerity measures. The public have been increasingly contacting private intelligence agencies, private inv
Jun 21, 20233 min read


Private Intelligence - Bridging the Knowledge Gap
SIASS (Private Intelligence Agency) clients all have one thing in common, they need to make informed decisions. It's our business to provide information for bridging the knowledge gap. The decision, a client needs to make, may be a personal, professional or financial decision. The whole point of any private detective, investigator or private intelligence service should be to seek information. To provide information or details that the client may suspect or not currently have
Jun 21, 20231 min read
Take a look at our SIASS blog posts below. From information about operations we undertake, to articles about technical surveillance issues, to details about who we are and our approach to private investigations. You will find plenty to interest you.
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