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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.


A Day in the Life of a SIASS Surveillance Operator?
What is it really like to work as a professional surveillance operator? In this fascinating feature originally published in MSL Magazine, journalist Alastair Walker spent a day with a SIASS surveillance operative, gaining an insight into the planning, patience, observation and specialist skills involved in professional covert surveillance. Far removed from the glamorous image of the fictional private investigator, the reality of surveillance is often considerably more methodi
Aug 116 min read


Professional Witnesses: The Evidence Behind Successful ASB Enforcement
Housing associations face increasing pressure to tackle anti-social behaviour (ASB) while ensuring that enforcement action is fair, proportionate and legally robust. One of the greatest challenges is obtaining reliable, independent evidence when residents are understandably reluctant to provide witness statements due to fear of intimidation or reprisals. This issue is not new. A landmark article published by Building magazine, featuring SIASS highlighted how councils and hous
Jul 83 min read


How to Report Anti-Social Behaviour in Newcastle upon Tyne
Anti-social behaviour (ASB) can have a serious impact on individuals, families and communities. It may include threatening behaviour, harassment, nuisance neighbours, persistent noise, drug-related activity, vandalism, graffiti, fly-tipping, abandoned vehicles, street drinking, hate-related incidents or behaviour that causes alarm, harassment or distress. If you are experiencing anti-social behaviour in Newcastle upon Tyne, it is important to report it to the right agency and
Jun 244 min read


ASB Case Management: When Residents Are Reluctant to Engage
Building Safer Communities Through Partnership, Evidence and Professional Support Anti-social behaviour (and ASB Case Management) remains one of the most persistent challenges facing communities across the UK. From nuisance neighbours and intimidation to drug-related activity, criminal damage and environmental disorder, ASB can have a devastating impact on residents' quality of life. Yet one of the greatest frustrations for housing associations, local authorities and enforcem
Jun 224 min read


Evidence Requirements for Tenancy Enforcement Action
Housing providers are frequently faced with situations where they know there is a problem, but lack the evidence required to take effective enforcement action. Whether dealing with anti-social behaviour, nuisance, tenancy fraud, harassment, property misuse or other breaches of tenancy agreements, the ability to obtain and present reliable evidence is often the deciding factor between successful intervention and continued disruption. Understanding what constitutes appropriate
Jun 184 min read


The Power of Professional Witness Services in Tackling Anti-Social Behaviour
Anti-social behaviour (ASB) continues to present serious challenges for communities, housing providers, and local authorities across the UK. From persistent noise nuisance and vandalism to harassment and criminal activity, the impact on residents can be profound—affecting safety, wellbeing, and overall quality of life. When should you use a professional witness? If your organisation requires independent evidence to support enforcement action, tenancy action, disciplinary proc
Apr 13 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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