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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.


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. But in today’s investigative landscape, many cases demand more than traditional methods. Technical surveillance—from covert cameras to tracker detection—has become a crucial part of modern investigations. This is where the role of a Commercial Technical Support Unit (TSU), such as SIASS, becomes invaluable. By providing advanced technical s
Aug 26, 20253 min read


Understanding and Preventing Workplace Theft
The Cost of Workplace Theft Theft in the workplace extends beyond simply taking physical goods. It can include misappropriating time, data, or even intellectual property. According to recent research by Zurich UK, workplace crime—including internal theft—is estimated to cost UK businesses over £190 million per year, with around 42% of fraud cases involving staff. Understanding the various forms theft can take is the first step towards prevention. Common Types of Workplace The
Jun 11, 20253 min read


Why Risk Assessments Matter: How SIASS Delivers Safe, Legal and Transparent Covert Surveillance
SIASS conduct full risk assessments before outlining an investigative strategy to a client Why Risk Assessments for Covert Surveillance Matter When it comes to covert surveillance, it is not simply about what is discovered; it is about how the discovery is made. At SIASS, it is believed that high-quality investigative work begins long before any camera is positioned or any operative steps into the field. Therefore, every investigation undertaken starts with a thorough assessm
Jun 6, 20253 min read


The Eternal Importance of Espionage
Long before the digital age, before James Bond sipped his first martini, and even before trench coats and magnifying glasses became synonymous with detectives, espionage shaped the course of human history. Knowledge is Power! Information is Power — A Timeless Truth At its core, espionage is the pursuit of knowledge. Knowledge, as any strategist will affirm, is power. The ability to gather, protect, and act upon information has always been vital for survival. Whether you are a
May 23, 20254 min read


Romance Scams and Private Investigations
Romance Scams: How to Protect Yourself and What to Do If You’ve Been Targeted Online dating has become an increasingly common way to meet new people, especially in today’s digital world. While many individuals find meaningful relationships this way, unfortunately, others fall victim to what’s known as romance scams — a form of fraud that preys on trust, emotion, and loneliness. At SIASS, we understand how devastating these scams can be — emotionally, financially, and psycholo
May 21, 20253 min read


DIY Private Investigations - Newcastle
Or Why You Should Leave Private Investigations to the Professionals In our increasingly inter-connected digital world, it can be tempting to believe that conducting your own private investigation (DIY private investigations) is both possible and practical. With access to social media, GPS apps, and online public records, many people feel empowered to take matters into their own hands. However, while it might seem straightforward at first, the reality is far more complex — and
May 19, 20253 min read


Cheating Spouses - Newcastle
Cheating Spouses Newcastle: Seeking the Truth with Care and Compassion When doubts about cheating begin to creep into a relationship, the emotional toll can be overwhelming. At SIASS, we understand that suspecting a partner of being unfaithful is not only distressing but can also lead to a deep sense of confusion, anxiety, and heartbreak. If you’re facing this painful uncertainty, you are not alone — and you deserve clarity. The Mental Strain of Not Knowing Living in limbo, c
May 19, 20252 min read


SIASS, Covert Investigators? Never Heard of Them
In the world of professional private investigation, visibility is not a virtue. Discretion, on the other hand, is everything. At SIASS, our commitment to confidentiality, subtlety and covert practice defines who we are—and more importantly, how we succeed.
May 16, 20253 min read


Spies, PIs and Prostitutes; Oldest Professions?
Is gathering intelligence the oldest profession?
Are spies and PIs older, as a profession, than prostitutes? Certainly, trading knowledge and information as a job has been around for a long time.
May 16, 20253 min read


Increased Demand for Private investigation in the UK
Rising Demand for UK Private Investigators Supported by New Ethical Standards The private investigation industry in the UK is experiencing significant growth, driven by increased demand across various sectors. This surge has prompted the introduction of new ethical standards aimed at ensuring that investigative practices remain lawful and responsible. Private Investigation Stereotype Strengthening Ethical Practices As the need for private investigators expands, so does the im
May 15, 20252 min read


The Benefits of Spy Cameras and Covert Surveillance Devices
buy spycams, eavesdropping devices and vehicle trackers to conduct covert surveillance yourself with support from SIASS covert surveillance
Oct 15, 20243 min read


Covert Surveillance to Give You Accurate Information
Take Control of Your Life
You deserve peace of mind. You deserve to know the truth. At SIASS, we’re here to provide the clarity you need.
Sep 5, 20243 min read


Frequently Asked Questions About UK Private Investigator Services
this post aims to answer some of the most common questions people have about private investigation services in the UK
Aug 7, 20244 min read


Can I Hire a Private Investigator in the UK to Follow Someone?
Yes, you can hire a private investigator in the UK to follow someone, provided it's done within the bounds of the law.
Aug 5, 20242 min read


The Importance of Hiring a Local Private Investigator
why a local private investigator provides a superior service to a National company.
Jul 18, 20243 min read


Harnessing SIASS Technical Surveillance for Social Housing Antisocial Behaviour Initiatives
Tackling anti-social behaviour requires a strategic approach. Gathering footage to evidence this behaviour is key.
Jul 15, 20243 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...
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
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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