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Interesting article about current search.
www.theolympian.com/home/news/20050130/topstories/78300.shtml
www.theolympian.com/home/news/20050130/topstories/78300.shtml
In ground radar works on the same principles as Sonar for ships or radar for ground to air. Sonograms of the human body are perhaps a closer comparison. Basically, a signal is sent out and echos are returned to the machine. There is a screen which depicts "anomalies" or differences/disturbances in the magnetic field. These anomalies might appear simply as a spot or a blip, or might be a large field.Yaya said:Richard, I don't know anything about how ground radar works or what it's parameters are. If you have knowledge of it will you explain.
1. What are depth parameters?
2. Does the thickness of the concrete preclude it being used in some cases?
3. Is it readily available to most Law Enforcement?
4. Why wouldn't in-ground radar always be the first and best alternative when looking for bodies in or around concrete? (It seems it would prevent the destruction of evidence and enable LE to better prepare to investigate a crime scene.)
I'm curious as to why it is not used in a lot of cases. I'm wondering if it could have been used in this case: http://abclocal.go.com/kabc/story?section=local&id=3764049 ...
Christopher H. Bridgeman, Jr.
Missing since 1963 from Thurston County, Washington
Classification: Missing
Vital Statistics
Distinguishing Characteristics: White male.
Circumstances of Disappearance
Bridgeman was last seen in a Thurston County, Washington motel in 1963.
He vanished after leaving his 6-year-old son alone during a custody visitation at a Martin Way motel.
Bridgeman's children thought their father had deserted them to pursue a career in country music.
But last year, a cousin the family hadn't seen in years called them with a disturbing theory: that Bridgeman's father, Christopher H. Bridgeman Sr., had killed his son and buried him in his basement. The theory gained a foothold when the missing man's driver's license turned up in Christopher Bridgeman Sr.'s belongings.
In 2004, the family started sifting through dirt and clearing debris from the old vacant home just outside of Olympia.
The grandfather, who has since died, built an extension to the basement about the time his son disappeared, which is why family members and investigators think the remains could be beneath the old house. After Bridgeman's daughter reported her belief to authorities, investigators with the Thurston County Sheriff's Office also came to the conclusion that her father probably met with foul play.
Some remember Christopher Bridgeman Sr., a self-proclaimed minister and builder, as having both charisma and a hot temper. He could change from one to the other in a flash, family members said.
The grandfather told family members that he took two weeks every year to travel to cities around the West Coast, looking for his son and filing missing persons reports. No one, including the sheriff's office, can confirm that a missing persons report ever was filed.
Investigators
If you have any information concerning this case, please contact: Thurston County Sheriff's Office Detective Louise Adams 360-786-5530
Source Information:
The Olympian 1/30/05
The Doe Network: Case File 1506DMWA
Link:
1506DMWA - Christopher H. Bridgeman, Jr.
Good to hear of a missing person case in which he was actually living a long life after his voluntary disappearance. A rare, but possible explanation for other cases.Hello, I wanted to update you on the case of Christopher Bridgeman. I am one of his children who was born after his disappearance in 1963, one of his 5 children born after he left. I can update you but this case was solved when one of his other grandchildren, actually Rick Bridgeman's daughter, found us. He died from cancer and dementia in May 2010 in Sandpoint, Id. <modsnip: personal, identifying information>
Thank you, Christi, for the update.Hello, I wanted to update you on the case of Christopher Bridgeman. I am one of his children who was born after his disappearance in 1963, one of his 5 children born after he left. I can update you but this case was solved when one of his other grandchildren, actually Rick Bridgeman's daughter, found us. He died from cancer and dementia in May 2010 in Sandpoint, Id. <modsnip: personal, identifying information>