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Spacing for line and grid search is
determined by visibility in the area/terrain to be searched not a book. There
are tables in search management texts that indicate how many people and how
many man hours it takes to search an area to a probability of detection.
Using trained mounted personnel for this kind of detailed, thorough, search is
a waste of resources. Since the object is to have a line or grid searcher
stumble over the subject almost any spontaneous volunteer can be taught to grid
search under supervision in ten minutes or less. Depending on the cover
foot searchers may actually be more efficient in some areas where ground
surface visibility is blocked by the ground cover (vegetation). Generally speaking, thorough techniques,
such as grid search, are reserved for desperation searches for immobile
objects, such as bodies and evidence. They require lots of man hours to
cover a small area, usually destroy any clues left on the ground surface, and
give a false sense of having searched when often the line misses large areas
due to difficulty in penetration. For a rough guestimate of manpower
divide your line by 50 feet or 10 meters to figure out how many you need to
cover the line and then use 1 MPH or slightly more than 1.5 KPH as the line
speed. The area should be searched at least 3 times by different crews,
moving in different directions, to be considered searched. And
somebody has to pay for the crop damage. Irv Lichtenstein From: msar-riders-bounces@lists.ibiblio.org
[mailto:msar-riders-bounces@lists.ibiblio.org] On Behalf Of Robert Boddy On a tangent from
this thread… Does someone have a
document that has the intervals between riders for a line/grid search? Thanks, Bob |
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