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Ground Penetrating Radar (GPR):

Used to locate buried objects. Various depths of penetration can be achieved by use of different antennas. TAS maintains antennas that range in frequency from 80 MHz to 1.5 Ghz. Depths of penetration range from six inches to 60 feet, subject to soil types and conditions. Depths of objects can be estimated.

Can be used to assist in locating: Hazardous waste barrels

Tunnels

- Weapons

- Anything metallic

- Human remains

Searches for human remains are

usually done after cadaver "scent detection dogs" have searched the area.

Fiber and Borescopes:

Optical devices used to provide visual search capability where the structure inhibits access and to prevent an unnecessary destructive search.

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Underwater Search Capability:

By the end of 1998 TAS capabilities will have been extended to include searches for evidence located in water.

The following technologies will be available:

High resolution side scan sonar

Ground penetrating radar

Magnetometer

Underwater video camera

Interpretation of Data

These technologies, the data collected, and the images produced may not, in some cases, graphically represent the objects being sought in realistic terms. It is essential that the data be interpreted by trained and experienced personnel.