- including armed operationsFor business owners, HR and compliance officers with a concrete suspicion of a breach of trust, an information leak, or eavesdropping risk. Lawful monitoring under § 129 (1) GewO.
Inquire confidentiallyA company's most costly security problems rarely come from outside:
Whether it's leaking trade secrets or misusing resources: without targeted observation, this is usually only noticed after the fact.
Only someone specifically looking for it detects subtle patterns in customer behavior or inventory shrinkage.
Hidden cameras or listening devices in offices or vehicles are often only found once something has already leaked.
Black Graben ensures that all monitoring measures are carried out in strict compliance with the legal requirements of § 129 (1) GewO. That includes monitoring employee integrity, customer surveillance on business premises, technical surveillance and counter-espionage, and internal investigations and risk assessments.
This guarantees a professional, ethical and lawful approach you can rely on completely as a client.
Discreet observation on suspicion of information leaks or resource misuse.
Theft prevention and behavior analysis to minimize losses in retail.
Detecting hidden cameras, microphones and GPS trackers in offices, vehicles and rooms.
Comprehensive investigation on suspicion of misconduct by employees or customers.
Discreet investigation within strict legal limits is a craft, not a gut feeling. Our founders bring the methodical discipline from international investigative and security operations to every surveillance measure.
Over 20 years assessing and mitigating complex risk for government institutions and private security organizations – the methodical foundation of every lawful surveillance operation.
Directed mission-critical operations on behalf of the U.S. Department of State and led training programs for local and international forces.
A fair comparison to standard guarding services and generic security providers – no names, just concrete criteria.
Clarifying the suspected case and the basic objective.
Ensuring the measure is permissible under § 129 (1) GewO.
Defining methodology, timeframe and technology used.
You receive a structured, usable findings report.
Yes, within the legal framework of § 129 (1) GewO. We review every case in advance and work strictly within these legal limits.
Using specialized equipment and without disrupting operations, we discreetly check offices, meeting rooms or vehicles for hidden cameras, microphones or trackers.
Yes. We work with a minimal circle of informed people and treat every inquiry with absolute discretion.
Every inquiry is reviewed personally and under absolute confidentiality. You'll learn in the initial consultation whether and how we can help you.
