TSCM: Technical Surveillance
Countermeasures Services and Telecommunications and Technical Security
The technical portion of the technical
surveillance countermeasures (TSCM) survey consists of the following
Radio Frequency (RF) Detection:
analysis requires a variety of instruments. Our RF detection equipment
includes two spectrum analyzers, an Omni Spectral Correlator (OSCOR), three
communications receivers, three carrier current receivers, a digital and
burst transmitter detector, and two near field transmitter detectors.
Infrared transmitter detection falls under RF detection, and we use an
Electrophysics infrared light viewer for that purpose.
in commercial environments includes looking for rouge wireless access points
attached to the company's LAN or WAN. An ultra-mobile computer equipped
with wireless network analysis software is used for this purpose. We also
look for open Bluetooth devices.
Telephone Tap and Eavesdropping Modification Detection:
system inspections involve several pieces of test equipment. Instruments
such as a Time Domain Reflectometer (TDR), digital oscilloscope, audio
amplifiers, digital and analog telephone analyzers, fluoroscope (X-Ray),
wire tracing equipment, and special telecommunications tools are used to
inspect for eavesdropping devices.
Physical Search and Miscellaneous Equipment:
physical search is augmented by the use of sophisticated instruments and
equipment. Our nonlinear junction detector, for example, is engineered to
detect components used in eavesdropping devices. If a device is not
operating because the batteries have gone dead, the nonlinear junction
detector will detect it because of its components. The use of a thermal
imaging camera helps us to see minute temperature variations that might
indicate the presence of a surveillance device. If an eavesdropper turned
off his transmitter before the investigators entered the building, the heat
caused by the power flowing through the device would be visible when using
the thermal imaging camera.
The physical search can include the use of a
metal detector, densimeter, x-ray, ultraviolet inspection lamp, camera lens
detector, and a variety of hand tools.
Benefits of Regular TSCM
Locate, identify and
neutralize clandestine surveillance devices.
Locate, identify and recommend corrections to office equipmentwhich
can be exploited for espionage purposes.
Helps satisfy the
obligation to protect confidential information as described in the
Economic Espionage Act of 1996.