Surveillance Investigation — eyes and ears where you need them
Surveillance is one of the most powerful methods in private investigation. We follow, document, and report — so you have factual evidence rather than suspicions.
Individuals
Surveillance Investigation (Private)
Suspicions and rumours are not enough — you need facts. Surveillance is one of the most direct and powerful methods for gathering factual evidence about someone's actual activities, contacts, and behaviour. Whether it concerns a partner you do not trust, an ex-partner committing alimony fraud, or a situation where you need certainty about what is going on — SAJ Recherche conducts professional surveillance investigations. Discreet, inconspicuous, and legally watertight.
What we investigate
What do we do during surveillance?
Our investigators carry out surveillance using professional equipment. During mobile surveillance, we follow the subject inconspicuously and document movements, locations, and contacts. During static surveillance, we record who comes and goes at a fixed location. Where possible, we capture observations on camera. All observations are recorded chronologically in a detailed timeline.
When is surveillance relevant?
Surveillance is deployed when factual evidence of someone's behaviour is necessary. This includes partner investigations, alimony cases involving suspected cohabitation, employment-related matters involving doubts about sick leave, housing fraud, stalking, or insurance fraud cases. Surveillance investigations are only permitted when conducted by an agency with a valid Wpbr licence and when there is a proportionate interest.
How does the investigation work?
You share the background and objective. We assess feasibility and advise on the approach.
We determine the surveillance period, resources, and expected outcomes.
Our investigators carry out the surveillance and record everything in real time.
You receive a report with a timeline, descriptions, and visual evidence, prepared for use in court.
Want to discuss your situation?
Contact us for a free, confidential consultation.
⚖️ Legal framework
SAJ Recherche operates in compliance with the Dutch Private Security and Investigation Agencies Act (Wpbr) and the General Data Protection Regulation (GDPR/AVG). All investigations are conducted under POB licence 8779, issued by the Ministry of Justice and Security.
Legal recognition and licences
Frequently asked questions
Is surveillance legal?
How long does a surveillance investigation take?
Can the observed person find out?
Does surveillance produce legally admissible evidence?
What does a surveillance investigation cost?
Read more about surveillance investigation (private)
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