Technical Surveillance Countermeasures (TSCM), often referred to as “debugging,” is the detection of unauthorised listening devices and hidden surveillance. GMI provides professional TSCM services for offices, boardrooms, homes and vehicles.
What we do
Our qualified TSCM operatives conduct electronic sweeps of designated areas to identify unauthorised or unexplained radio frequencies that may indicate hidden transmitters. We use specialist equipment and methodologies to detect both active and passive devices.
In addition to electronic sweeps, we carry out a physical examination of each area to locate any concealed listening devices, cameras or data interception equipment that might not be apparent from frequency analysis alone.
Who needs TSCM?
TSCM is particularly relevant for executives, legal practices, boardrooms and anyone handling sensitive commercial or personal information who needs confidence in the security of their communications. Regular sweeps can form part of a broader information-security posture, especially before high-stakes meetings or after a suspected breach.
Whether you have specific concerns or require routine sweeps, we can tailor the service to your environment and budget.
| Component | Description |
|---|---|
| Electronic sweep | Scan for RF transmissions and unauthorised frequencies across the spectrum |
| Physical inspection | Visual and physical check for concealed devices, cabling and tampering |
| Written report | Scope, methodology, findings and assurance statement |
| Environments | Offices, boardrooms, meeting rooms, homes, vehicles |
Confidentiality
All TSCM work is conducted in strict confidence. We do not disclose the identity of our clients or the locations we have swept. Contact us to arrange a confidential discussion and quote.
