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


How to Spot and Avoid Facebook Marketplace Scams
Facebook Marketplace Scams: What You Need to Know Before It Costs You Money Facebook Marketplace has become a popular place to buy and sell everything from furniture to vehicles. Unfortunately, it has also become a hotspot for increasingly sophisticated scams. At SIASS, we are seeing a growing number of cases where people are being misled, financially harmed, and left with little recourse. This article highlights some of the most common Facebook Marketplace scams currently ci
17 minutes ago3 min read


Unlock Your Potential with SIASS and Verrimus TSCM Training for Professionals
In today’s world, security threats are more sophisticated and harder to detect than ever before. Whether you work in corporate security, government, or private investigation, understanding how to identify and counteract electronic surveillance is crucial. That’s why SIASS has partnered with Verrimus, specialists in Technical Surveillance Countermeasures (TSCM), to offer commercial TSCM training designed specifically for professionals like you. This collaboration brings togeth
2 days ago3 min read


Start 2026 With Insight, Answers and Peace of Mind
As the festive season draws to a close, we would like to wish all our readers a very happy Christmas and a peaceful, prosperous New Year. 🎄✨As we look ahead to 2026 , many people take time to reflect, reassess priorities and consider how best to resolve matters that have been quietly troubling them. You may be entering the new year with unanswered questions, lingering concerns, or situations that feel difficult to confront alone. Whether the issue is professional, personal,
Dec 18, 20252 min read


Guide to the Lawful and Ethical Use of Covert Surveillance
Private surveillance is lawful when conducted properly.
Evidence gathered by SIASS can be admissible if the legal framework is respected.
SIASS follows rigorous standards ensuring privacy, legality, and evidential quality.
Misstatements suggesting private surveillance is inherently illegal are incorrect.
Dec 3, 20254 min read


Safeguarding Your Privacy in Student Accommodation:
What Students Need to Know About Technical Surveillance in University Life As thousands of new students move into halls of residence or private rentals each autumn, it is an exciting time. New friendships, new routines, and often, the first real taste of independence are all part of the experience. However, alongside this excitement, it is crucial to be aware of serious safeguarding concerns surrounding personal privacy and technical surveillance. At SIASS , efforts are made
Oct 20, 20253 min read


How Covert Investigations Achieve Results
The realm of hidden investigation processes is characterised by meticulous planning, discreet execution, and the utilisation of advanced technology. These processes are essential in uncovering information that would otherwise remain inaccessible through conventional means. The effectiveness of such investigations relies heavily on the expertise of professionals who operate within legal and ethical boundaries to gather evidence and intelligence. This article explores the mecha
Oct 17, 20254 min read


Commercial Technical Surveillance & TSCM Training by SIASS
Launching in January 2026: A New Era in Technical Surveillance Training We are excited to announce that from January 2026 , SIASS will be launching a brand-new programme of Commercial Technical Surveillance and Commercial Technical Surveillance Counter Measures (TSCM) training. This initiative represents a significant advancement in the field of technical surveillance education. For some time, our colleagues at Verrimus have received numerous inquiries regarding the provi
Oct 16, 20253 min read


Covert Observation Services - SIASS Support
Why SIASS TSU Makes Sense for Your Organisation Let me be upfront: not every organisation needs to become a mini intelligence agency. But sometimes you do need reliable, covert observation — and you don’t want the headache or expense of buying all the kit and training up staff. That’s exactly where SIASS Commercial TSU Services step in. Here’s a more conversational take on how we help clients like you get the surveillance capability you need — quietly, legally, efficiently.
Oct 16, 20253 min read


Comprehensive Surveillance Strategies for Enhanced Security
The Importance of Surveillance Surveillance plays a pivotal role in safeguarding assets and ensuring operational continuity. In an era where security threats are multifaceted, organisations must adopt a comprehensive approach to surveillance. This involves not only the deployment of technology but also the integration of human resources and legal compliance. Planning Phase Risk Assessment The heart of any effective surveillance strategy is a detailed risk assessment. This ste
Sep 8, 20254 min read


ASB Professional Witness Services from SIASS
Empowering Landlords and Communities to Act Against Anti-Social Behaviour — with SIASS by Your Side The Housing Ombudsman’s latest “Learning from Severe Maladministration” report delivers a crucial warning to social landlords: antisocial behaviour (ASB) and hate crime remain persistently mishandled, with devastating consequences for residents. The report calls for robust recording, action plans, risk assessments, repairs coordination—and most importantly, proactive, data-dri
Sep 2, 20253 min read


Understanding Technical Surveillance
Understanding Technical Surveillance: Methods, Implications, and When It’s Appropriate In an era defined by rapid technological advances,...
Aug 29, 20253 min read


How SIASS Supports Landlords with Tenant Issues
Private and social housing landlords face a wide range of challenges when it comes to managing tenancies. While the majority of tenants...
Aug 28, 20252 min read


What is a Technical Operator?
When we hear the term technical operator (sometimes referred to as a technical operative ), many people think first of the military. In...
Aug 28, 20252 min read


Recognising Insider Threats
Organisations often invest heavily in protecting themselves from cyber criminals and external attacks. However, some of the greatest...
Aug 27, 20253 min read


Modern Tools of Surveillance
Surveillance is no longer confined to shadowy figures watching from the corner of a street. Today, it’s powered by technology that is...
Aug 27, 20253 min read


Understanding the Rules: Covert Surveillance and Technical Investigations in the UK
When planning an investigation that may involve covert surveillance, it’s vital to understand the legal framework that governs how it can...
Aug 26, 20252 min read


When Private Investigators Need Technical Support: The Role of a Commercial TSU
Private investigators (PIs) are skilled professionals who excel at gathering evidence, conducting interviews, and managing complex cases....
Aug 26, 20253 min read


Is It Legal to Conduct Surveillance Privately in the UK?
Surveillance can be a powerful tool in both private and civil investigations – but it also raises important legal and ethical questions. At SIASS , we are often asked: “Is it legal to conduct surveillance privately in the UK?” The answer depends on how surveillance is carried out , who is being observed, and whether the activity complies with UK law. In this article, we’ll outline the legal position, explain the risks of carrying out surveillance without professional guidanc
Aug 26, 20252 min read


How Surveillance Services Can Help Uncover Hidden Truths
Uncovering hidden truths can be a challenging task. Whether it’s for personal reasons, legal matters, or business concerns, surveillance...
Aug 26, 20254 min read


Understanding the Importance of Surveillance Services in Investigations
In today’s fast-paced world, the need for effective surveillance services has become more critical than ever. Surveillance plays a vital...
Aug 26, 20254 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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