Water-soaked evidence: detectability of explosive traces after immersion in water.

Citation:

Kamyshny A, Magdassi S, Avissar Y, Almog J. Water-soaked evidence: detectability of explosive traces after immersion in water. J. Forensic Sci.Journal of Forensic Sciences. 2003;48 (2) :312 - 317.

Date Published:

2003///

Abstract:

Various factors governing the detectability of explosive traces after being soaked in water were studied. The variables are: the type of the surface (surfaces liable to be found in aircraft were chosen), the type of explosive, the type of water (tap or seawater), and movement of the immersed surface in the water. The maximal immersion times (tmax) after which explosive detection was possible were evaluated. This datum was found to depend on the type of explosive (one of the important factors is soly. in water), the surface material and the environmental conditions (tap or seawater movement). Detection of PETN on high-d. polyethylene, linoleum, glass and aluminum, by the chem. Explosive Testing Kit (ETK), was possible even after a month of soaking in seawater. In addn., it was found that movement of bulk water around the samples with deposited explosives considerably decreases tmax values. It is, therefore, recommended to retrieve samples for explosive anal. as soon as possible and in areas where the currents of water is minimal. [on SciFinder(R)]

Notes:

CAPLUS AN 2003:233216(Journal)