
TSCM & Technical Counter-Surveillance Sweeps.
Protecting executive boardrooms, legal consults, private residences, and vehicles from illicit audio, optical, and radio eavesdropping devices.
Technical Surveillance Counter-Measures
TSCM involves systematic physical, radio-frequency (RF), and non-linear junction detection (NLJD) sweeps of environments suspected of unauthorised surveillance or eavesdropping. Our methodology identifies active, passive, and dormant transmitter devices that compromise confidential communications.
Deployed across corporate boardrooms, law firm conference rooms, private estates, and luxury vehicles, our physical and technical methodology provides documented assurance that your environment is clear of illicit monitoring devices.

- RF Spectrum Analysis (10kHz – 12GHz+)
- Non-Linear Junction Detection (NLJD)
- Thermal Infrared Inspection
- Physical Eavesdropping Search

- Executive Boardrooms & Legal Suites
- High-Net-Worth Private Residences
- Executive Vehicles & Aviation
- Temporary Pre-Meeting Clearances
The Sweep Process
RF Spectrum Analysis
Continuous and swept analysis across the radio-frequency spectrum to identify active transmitters.
Non-Linear Junction Detection
NLJD scanning to locate semiconductor components in dormant or passive devices.
Thermal Imaging
Infrared inspection to identify heat signatures of concealed electronic devices.
Physical Search
Methodical physical examination of fixtures, fittings, and furniture for concealed devices.
When To Commission a Sweep
Boardroom Security
Before high-stakes negotiations, mergers, or board meetings.
Residential Clearance
For high-net-worth individuals concerned about domestic eavesdropping.
Vehicle Sweep
Executive and chauffeur-driven vehicles prior to sensitive travel.
Event Pre-Clearance
Temporary venues and hired spaces before confidential events.
Post-Incident
Following a suspected breach or information leak investigation.
Routine Assurance
Periodic scheduled sweeps as part of an ongoing security programme.
Request TSCM Clearance
Ensure secure operational communications. Contact us via non-compromised channels for pre-sweep guidance.
Direct Contact Channels