Electronic detection. Physical inspection. Documented findings. Cape Town · Nationwide · International.
Professional TSCM, electronic bug sweeping and counter-surveillance for businesses, executives and private clients.
Secure Sweep provides professional Technical Surveillance Counter-Measures (TSCM) inspections for the detection of hidden listening devices, covert cameras, RF transmitters, GPS tracking devices and other forms of unauthorised surveillance. Cape Town based. Nationwide deployment. International assignments available.
Covert microphones, miniature cameras, cellular transmitters and tracking devices are inexpensive and widely available. They can be concealed in everyday objects, electrical fittings, furniture, vehicles and electronic equipment. Finding them takes more than a scan for radio signals. Effective TSCM combines electronic detection, careful physical inspection and experienced interpretation to assess what is present in the environment.
When surveillance is suspected, assumptions alone cannot establish what is happening. A professional TSCM inspection examines the environment methodically, using electronic detection and physical inspection to assess the concern. Findings are documented, with clear recommendations based on the conditions observed at the time. This structured assessment gives you a practical basis for deciding what to do next.
Modern offices contain legitimate radio and electronic activity from Wi-Fi, cellular devices, cordless phones, video conferencing, Bluetooth peripherals and building systems. Detecting a signal does not, by itself, establish a threat. Professional TSCM identifies, locates and assesses unexplained activity while documenting normal infrastructure. Experienced interpretation and instrument cross-checks help distinguish everyday communications from signals that need further investigation.
Professional Technical Surveillance Counter-Measures combining RF detection, digital transmission detection, hidden-camera detection and detailed physical inspection.
Electronic detection and physical inspection for offices, boardrooms, homes and estates.
DetailsInspection for GPS trackers, transmitting devices and suspicious installations in vehicles.
DetailsOptical detection of concealed camera lenses in residential, corporate and hospitality environments.
DetailsSurveillance risk assessment and practical counter-surveillance planning for sensitive corporate environments.
DetailsDiscreet inspections of hotels, executive vehicles, aircraft and vessels by prior arrangement.
DetailsCross-border TSCM assignments with travel and operational requirements agreed in your quotation.
DetailsMobile Security: coming soon — enquire about availability by prior arrangement.
Contact us from a device you trust where possible. We obtain sufficient information to understand the concern, premises, areas to be inspected and the circumstances that gave rise to the request.
We establish the inspection areas, access requirements, timing and any confidentiality considerations. Where appropriate, inspections can be scheduled after hours or when the premises are unoccupied.
The premises are inspected methodically using multiple RF and digital transmission detectors, hidden-camera detection equipment and detailed physical examination of accessible areas and infrastructure.
Significant observations are documented photographically. The client receives a written report detailing the areas inspected, equipment used, observations, findings and recommendations.
Secure Sweep uses multiple complementary detection technologies rather than relying on a single RF detector.
Our equipment includes specialist multi-band RF detectors, digital transmission detectors, directional microwave antennas and optical hidden-camera detection systems.
Different instruments are used to cross-check unusual signals and assist with distinguishing normal telecommunications activity from signals requiring further investigation.
Multi-band RF detection
Multi-band RF and digital transmission detection
| Equipment | Detection capability |
|---|---|
| iProtect 1216 | Three-band RF environment assessment covering 50 MHz–12 GHz. |
| Protect 1206i | Wideband RF and digital transmission detection with directional localisation and analogue correlation capability. |
| Protect 1207i | Selective digital transmission detection for cellular, Bluetooth, Wi-Fi and tracker-related investigations. |
| WEGA-i | Optical detection of concealed camera lenses. |
| ODA-4 / MWA-6 | Specialised antennas used to increase sensitivity and, where applicable, provide directional RF localisation. |
Ceiling panels, fixtures, smoke detectors, ventilation and accessible cavities.
Accessible plug points, adapters, extension leads and unusual wiring.
Desks, meeting tables, cabinets, shelving and concealment areas.
Telephones, network equipment, Wi-Fi infrastructure and data connections.
Projectors, conferencing cameras, screens, speakers and control equipment.
Artwork, decorative items, wall fittings and unusual modifications.
Specialist environments can be assessed by prior arrangement, including hotel suites, conference venues, executive vehicles, aircraft and vessels.
International assignments are available by prior arrangement. Travel, accommodation, local transport, insurance and operational expenses are incorporated into the assignment quotation.
Cape Town based. Nationwide deployment. International assignments available.
Travel outside the normal service area is quoted before commencement.
Regions served on request include Southern Africa, the Indian Ocean islands, the Middle East and Europe. For example, an assignment in Namibia, Mauritius or the UAE can be discussed; availability, permissions and travel are agreed for each request.
Travel, accommodation, local transport, insurance and operational expenses are incorporated into the assignment quotation.
TSCM assignments frequently involve highly sensitive personal, commercial or legal circumstances. Information regarding the client, premises, reason for inspection and findings is handled on a strict need-to-know basis.
Pricing is primarily determined by the size and complexity of the area to be inspected. Corporate and premises inspections are generally calculated according to the square metres requiring examination, with additional costs applicable for travel outside the normal service area and specialist deployment requirements.
A formal quotation is provided before commencement.
The duration depends on the size, layout and complexity of the environment. A lightly furnished office can be examined considerably faster than a technically complex boardroom containing extensive audiovisual, network and communications infrastructure. We can normally provide a better time estimate once the premises and scope are understood.
Suspected surveillance equipment is documented in situ before it is disturbed. Depending on the circumstances, we may recommend preserving the device for forensic examination, legal proceedings or collection by SAPS rather than immediately removing or disabling it. Any action is discussed with the authorised client representative.
No professional TSCM provider should make an absolute guarantee. An inspection establishes whether suspicious devices, unexplained transmissions or other indicators were identified under the conditions present at the time of examination.
This is why Secure Sweep combines electronic detection with detailed physical inspection rather than relying on RF detection alone.
Cape Town based. Nationwide deployment. International assignments available.
International assignments are available by prior arrangement. Travel, accommodation, local transport, insurance and operational expenses are incorporated into the assignment quotation.
Contact us from a device you trust where possible.
PSIRA-registered · 2649830
