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In September 2009, BA Silva Sensing Systems was contracted to survey the Garrido property in Antioch, California. The Hayward Police, along with four other local police agencies and the FBI attempted to find the bodies of two local girls kidnapped prior to the kidnapping of Jaycee L. Dugard. The local agencies brought in cadaver and human remain dogs and high tech ground penetrating radar (GPR) in an attempt to find human remains, possibly related to the two missing girls.

GPR, as a technology, has long been used to map cemeteries, Native American, and other archeological sites. Billy A. Silva, Principal Investigator, was asked to perform both Ground Penetrating Radar and Magnetometry to ensure the most comprehensive analysis of the data collected from the site. The result of this effort provided investigators another tool in their due diligence to fully understand what existed at the Antioch crime scene.

GPR was used to systematically survey the Garrido and a neighbor’s property that was once managed by the Garrido family. Details of the survey cannot be given out at this time. Stay tuned for updates to this story as more will be posted when it is allowed by law enforcement agencies.

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