General Study Guide - Ontario Police College
General Study Guide - Ontario Police College
General Study Guide - Ontario Police College
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Waxed cardboard (e.g. milk cartons, soft drink cups)<br />
Cyanoacrylate fuming<br />
Magnetic powders, granular powders, powder suspension, iodine fuming<br />
FURNITURE<br />
Waxed or Polished<br />
Granular powder, cyanoacrylate fuming<br />
Oiled<br />
<strong>General</strong>ly unproductive, if necessary try granular powder, cyanoacrylate fuming<br />
Varnished or painted<br />
Granular powders, cyanoacrylate fuming<br />
Unfinished wood<br />
Granular or magnetic powders on very smooth surfaces, iodine, ninhydrin spray<br />
LEATHER (E.G. PURSES, BRIEFCASES)<br />
Magnetic powder, powder suspension if wet, cyanoacrylate fuming<br />
HUMAN SKIN<br />
Iodine fuming with silver plate transfer<br />
Transfer to ‘Kromekote’ which is then dusted with conventional or magnetic powders<br />
Magnetic powder direct<br />
Laser fluorescence direct<br />
WET SURFACES<br />
While wet, treat with powder suspension or physical developer or<br />
Allow to dry and then treat with conventional methods i.e. powders and/or physical<br />
developer<br />
COLD SURFACES (i.e. BELOW FREEZING)<br />
Remove to warm area and allow to warm to room temperature<br />
Use conventional methods (powders, CA) as soon as condensation evaporates. Powder<br />
suspension may be effective<br />
Examination while frozen is unlikely to develop impressions<br />
HOT SURFACES (E.G. AUTOMOBILE IN SUMMER SUN)
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