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Our technical surveillance countermeasures (TSCM) surveys are conducted using meticulous procedures developed by our engineers. These procedures are constantly undergoing revision to accommodate innovations in surreptitious eavesdropping technology and methods. Our typical sweep includes,but is not limited to, the following.
Radio spectrum and infrared analysis.
These analyses are conducted in two ways: during regular business hours, for the detection of remotely-controlled transmitters; and outside of regular business hours, close in to the area of concern. To conduct the radio spectrum analysis we use a laboratory-grade spectrum analyzer, specially modified for TSCM, to detect transmitters operating well into the millimeter wave frequency range; and several high-quality receivers to detect, demodulate, and identify all signals, including weak transmissions from other parts of the building. These receivers are capable of demodulating signals using amplitude modulation, frequency modulation, phase modulation, upper or lower side band modulation, frequency division multiplexing, subcarrier, or video; from VLF, well into the microwave frequency range. We also employ a sensitive infrared optical instrument to detect and identify transmitters using infra-red LED's, or laser eavesdropping.
We conduct a thorough analysis of telephone, electrical, and unidentified wiring for anomalous conditions with regard to capacitance, resistance, reactance, resistive imbalance, voltage, current flow, audio signals, carrier current transmissions, and multiplexed emissions. Several pieces of proprietary equipment are used during this analysis, including a sophisticatedFFT analyzer.
Telecommunications system analysis.
We perform a meticulous physical inspection and analysis of your telecommunications systems, including the building entrance terminal, protectors, distribution frames, telephone switches, network demarcation blocks, aerial closures, distribution pedestals, underground service boxes, key systems, PBX, subscriber stations, riser closures, facsimiles, hubs, concentrators, routers, bridges, and every appearance of the protected circuits, both wire and fiber optic. We use several proprietary instruments for this analysis, as well as a time-domain reflectometer which provides both electronic and hard copy display of anomalous conditions in hidden wiring.
We conduct a thorough, methodical, physical search and inspection of the protected premises. This exhaustive search includes, but is not limited to, all crawl spaces, drop ceilings, floor coverings, furniture, fixtures, appliances, office equipment, books, and art objects. We also evaluate ducting, common spaces, and adjoining areas for acoustic transmission. During this search we employ a non-linear junction detector which will detect electronic devices, whether or not they are operating; a real-time portable x-ray to thoroughly examine objects which may be damaged by physical inspection; a highly-sensitive thermographic imaging system to detect the faint heat signatures produced by operating electronic circuitry; a magnetometer to detect metallic shielding and components concealed in nonmetallic objects; and high-intensity ultra-violet illumination to detect variations in painted surfaces, fresh putty, hidden wiring, or other modifications not usually visible under normal light. Custom tamper-evident seals are placed on inspected items to assure you of their continued integrity. During the physical inspection we also employ a proprietary laser system to detect concealed video cameras.
Report and security survey.
Upon completion we provide a comprehensive report of our findings, with observations and recommendations to improve the security of sensitive information.
A Real TSCM Survey
Please call us at (818) 492-9900 from a telephone which is away from an area of concern.
You may e-mail us at: email@example.com
COMSEC ASSOCIATES, INC.
P.O. Drawer 708, La Canada Flintridge, California 91012
Licensed State of California Private Investigator PI15830
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