Magnetic Particle Recovery of Serial Numbers
Description:
One method used by crime labs to recover obliterated serial numbers in steel firearms (ferrous samples) is the magnetic particle technique. The use of this method is predicated on the detection of metal deformation present under stamped serial numbers after the visible stamp has been removed. Equipment specialized for this detection is not used in these attempts; a portable magnetic yoke used typically for flaw detection on large weldments or structures, along with dry visible magnetic powders,…
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Date:
October 1, 2003
Creator:
Utrata, D. & Johnson, M.J.
Item Type:
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Partner:
UNT Libraries Government Documents Department