Types of Sweeps

TSCM includes all countermeasures employed to prevent or detect the interception of sensitive, classified, or private information. TSCM is typically an inspection by a technician or engineer of a physical item or place (briefcase, automobile, office, home, boat, etc…). The purpose is to locate possible covert surveillance devices (bugs), technical security weakness, and technical security hazards. A TSCM specialist will also evaluate for weaknesses all locks, alarms, and other systems of physical and electronic security or controls.

ELECTRONIC SURVEILLANCE COUNTERMEASURES

Countermeasure searches are systematic procedures designed to locate and neutralize audio surveillance devices or attempt at audio penetration. The search is divided into five phases:

ELECTROMAGNETIC RADIO FREQUENCY SPECTRUM SWEEP

This procedure consists of an analysis of radio frequency emissions for the detection of concealed “active” radiant radio transmitters that may have been “ planted” within a target area.

TELECOMMUNICATIONS DIAGNOSIS

For the eavesdropper to successfully facilitate a practical illicit intervention and subsequent monitoring of telecommunications traffic, a bypass, removal, alteration and/ or modification of the standard system has to occur. This procedure consists of an electronic analysis for the detection of a possible penetration.

WIRE LINK INSPECTION

All electrical receptacles are opened and examined visually, electronically, electro-magnetically and with a carrier-current receiver for the detection of devices.

AUDIO LEAKAGE EVALUATION

This determines if a conversation is taking place within a target area can be overheard.

PHYSICAL INSPECTION

A physical inspection is conducted for the express purpose of locating hardwire microphones and all “ passive” devices in an inactive mode.

REPORTS

Upon completion of the search, an oral report is provided with an overview of the hazards encountered. This is followed within 15 working days by a comprehensive written report with photographs of hazards (where found) and recommendations.

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