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Technical Surveillance Counter Measures(TSCM) Services

We need to be keenly aware of the startling advances in the sophistication of eavesdropping and surveillance technologies with their capacity to easily sweep up and analyze enormous quantities of information and then mine it for intelligence. And this adds significant vulnerability to the privacy and freedom of enormous numbers of innocent people at the same time as the potential power of those technologies grows.

During the last few years the number of surveillance cameras has grown out of bounds. Cameras and bugs have been installed in many private, public and semi-public places such as homes, bathrooms, universities, streets, and supermarkets, gas stations, parking garages, cinemas, bars, shops, busses, Train stations and even discos. While there is concern that persons interested in finding hidden cameras may have criminal intentions, there are legitimate reasons for such interest as well. One important reason can be concern about privacy and personal freedom. We can check for cameras and listening devices in your home or office to protect your privacy.

GREVESGROUP® examines many Techniques of bugging and countermeasures viz:

  • Phone tapping
  • Visual and audio bug
  • Trade secret
  • Recording without a recognised bug
  • Car tracking devices
  • Bugging meeting rooms
  • Using the wrong number trick
  • Surreptitious entry
  • Cell phone bugging
  • Defeating safe houses
  • Choosing the right equipment
  • Identifying countermeasures

If you need professional TSCM (Technical Surveillance Counter Measures) services, the Technical Division of GREVESGROUP® will bring their equipment and expertise to help you. We carry out Counter Surveillance bug sweeps and Concealed Camera Sweeps in most areas and environments where we use some of the industries' most advanced electronic counter surveillance and debugging equipment to locate all types of electronic listening devices / bugs, telephone taps, hidden video, radio and microwave devices.

In order to explain the risks that you may encounter from being bugged we have detailed the three main types below:

Hardwire, (Telephone & Telephone line search): A Hardwire bug or transmitter is a listening device that is attached to your phone or phone line. It's generally powered by the line or the phone itself, these are often hard to detect as they generally transmit when a call is in operation. A hardwire transmitter can be placed on the phone, line, or central telephone system. The transmitter can even be placed on your line outside of the building, or down the street at the junction box.

Radio Frequency (RF), (Spectrum & audio search): RF transmitters send wireless signals through the air. A FM / AM / Microwave counter surveillance scanner device can then intercept these signals.

Laser/Infrared bugs: These types of listening devices operate through a window or similar opening. An operative could easily setup the equipment via tripod connected to a transmitter and intercept your communication from miles away. A laser or infrared beam is shot into the room from any distance of up to many miles away. The audio in that room is picked up by the laser beam and transferred into data that is then sent over the light or infrared beam back to the sender. The sender normally has a recorder connected to the equipment and can record the conversation.

Physical Search: The inspection of electrical outlets, air vents, ceiling tiles, smoke detector covers, light switch covers etc for inspection.

The protection of individual privacy is an important facet of a democratic society. We provide the services to our clients for protection of their individuality.

We continuously strive to help you to provide a consistently high standard of service and understand the extensive enquiries related to the corporate sector. We discuss all the issues in complete confidential manner which is also included non disclosure agreement where necessary. To obtain more comprehensive information related to our Corporate Investigation Services you may inquire on [email protected].

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