Technical Surveillance Counter Measures : TSCM

Delivered by specialists with backgrounds in UK Special Forces, government, and defence, ensuring the highest professional standards.

S2K provide discreet, high-level Technical Surveillance Counter Measures (TSCM) operations for private, corporate, and legal-sector clients across the UK. Also known as electronic bug sweeping, TSCM involves the detection, identification, and neutralisation of illicit surveillance devices, from covert audio bugs and hidden cameras to GPS trackers and wireless transmitters.

TSCM Services

Our TSCM services are led by former Home Office technical specialists with decades of experience operating in sensitive environments, including government facilities, private residences, commercial premises, and mobile platforms. Each deployment is structured, thorough, and conducted to the highest technical standard.

All TSCM operations are conducted in strict confidence, with minimal disruption to your property or schedule. Our processes follow the principles of necessity, legality, and discretion — designed to protect you, your reputation, and your operational integrity.

S2K’s TSCM capability is not a bolted-on service. It is a specialist strand of our operational output, delivered by professionals with proven track records in high-threat and high-value environments.

TSCM Sweeps

What we offer:

  • Full RF spectrum analysis to identify unauthorised transmissions

  • Physical and thermal inspection for hardwired or dormant devices

  • GPS tracker sweeps for vehicles, including long-term passive devices

  • Detection of Wi-Fi, Bluetooth, GSM, 3G/4G/5G, and other signal-based threats

  • Comprehensive reporting, including findings, mitigation advice, and evidence logs

  • Aftercare support and guidance on reducing future vulnerabilities

Our Operational Surveillance Services

  • covert human surveillance in a shopping centre

    Covert Human Surveillance

    S2K specialises in the delivery of ethical, proportionate, and intelligence-led Covert Human Surveillance operations across the UK.

  • technical surveillance operative

    Technical Surveillance

    Our Technical Surveillance capability provides clients with discreet, covert monitoring solutions that are ethically planned, legally compliant.

  • TSCM operatives

    Protective Surveillance

    Our Protective Surveillance service offers discreet, intelligence-led security for individuals, corporate teams, and high-risk meetings.

  • red team operator

    Penetration Testing

    Our Red Team operations are designed to rigorously assess the physical, technical, and human security measures protecting your organisation.

  • covert surveillance operator in car

    Investigative Support services

    Our Investigative Support services provide specialist assistance to clients who require professional, impartial input during sensitive or complex cases.

  • protective surveillance on a client

    All Services

    Each service is delivered with precision and professionalism, tailored to meet the unique demands of our clients in any environment.