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consistent test latent fingerprints again and again
Each Evidence Security Bag has a pre-printed chain-of-custody label on it with blue lines on a white background
black or transparent backing
Latent print development techniques can then be accurately tested and gauged based on this reference standard
Rods and lasers may be connected in succession
Bi-Chromatic Magnetic Fingerprint Powder Add On Only consistent test latent fingerprints againBi Chromatic powder has the unique quality of appearing black when dusted on light colored surfaces and silver when dusted on dark colored surfaces. Products purchased online are for domestic sale and domestic use only. These items are controlled for export from the US. Any attempt to export these items constitutes a violation of US export laws and regulations.