General Study Guide - Ontario Police College

Alternate Light Source Reference Chart
BAND COLOUR GENERAL APPLICATION
400 – 700 nm White Light General searching & oblique lighting
350 nm Ultra Violet General searching (stains & fingerprints)
415 nm Violet (blood filter) Blood prints, spatter, gunshot residue
450 nm Blue General searching (semen, urea, fibres)
470 nm Blue General searching (ninhydrin prints)
490 nm Blue General searching (semen, urea, fibres)
505 nm Blue/Green Superglue & ninhydrin treated prints
530 nm Green DFO treated exhibits, background reduction
555 nm Green/Orange DFO treated exhibits, background reduction
590 nm Orange Ninhydrin treatments, background reduction
620 nm Orange/Red Ninhydrin treatments, background reduction
650 nm Red Ninhydrin treatments, background reduction
IR Infra Red Altered documents, inks
Goggles to Use for Eye Protection
Filter Clear Yellow Orange Red
UV 350 * * * *
415 * *
450 *
470 *
490 *
505 * *
530 *
555 *
590 *
620 *
650 *
690 *
WHITE *
IR
GOGGLES WILL NOT BLOCK IR