Model

Description

LP-1-0032

DFO, 40oz. Container

DFO is responsive to the amino acids present in the body protein. Research has established that DFO will develop 2.5 to 3 times more latent prints on paper items than ninhydrin used alone. If used in sequence with ninhydrin, DFO must be used first to achieve fluorescence. Mix it yourself or use the convenient spray. Dip the paper documents or spray them and allow them to dry. Heat the papers using an oven or dry iron for 10-20 minutes. Examine with a Forensic Light Source and photograph the resulting latent prints. Heating the papers with a hand iron for 10-20 minutes is a bit time consuming. We recommended using an oven such as the one shown below.

LP-1-0039

DFO, 1 gram

Basic Yellow 40 can be used after glue fuming on surfaces such as cans, leather and plastics. A Forensic Light Source or UV lamp can be used to examine the evidence. Basic Yellow 40 fluoresces well between 365 nm and 485 nm. Mix about 2 grams in a liter of reagent alcohol. Basic Yellow 40 is the "Y" in the special solution known as RAY. The other parts are solutions of Rhodamine 6G and Ardrox.

Shelf life of dry powder: indefinite as long as it is dry.
Store in a cool, dark place.
Shelf life of mixed solution: approximately 6 months.
Store the mixed solution in a dark bottle in a fume hood or flammable liquids cabinet.

LP-1-0044

Basic Yellow 40, 25 grams

Sudan Black is one of the best processes for developing latent prints on smooth or rough, nonporous surfaces contaminated with greasy or sticky substances. It works best on glass, metal or plastic materials and can be used on waxy surfaces, such as candles or wax-paper milk cartons. Sudan Black stains the fatty components of sebaceous secretions from the skin. Try this process on the inside of those latex gloves left behind at the scene of a burglary. Sudan Black is easy-to-use, inexpensive and nontoxic.

Shelf-life of Sudan Black powder: indefinite.
The working solution also has an indefinite shelf-life.

LP-1-0033

Sudan Black, 30 grams

Rhodamine 6G is one of the best laser/Forensic Light Source dyes available on the market for developing latent prints. It is inexpensive, safe-to-use and a little goes a long way. Mix about 0.1 gram in 2-3 liters of solvent. It can be diluted in Methanol or other similar solvent, or in water and be used on metal, glass, leather, plastic, and other objects. Tests should be conducted on different surfaces to determine which solvent mixture will work the best on a particular surface. For more information on mixing and the applications of Rhodamine 6G. Rhodamine 6G is the "R" in the special solutions of RAY and RAM. Solutions of Ardrox and Basic Yellow 40 are the other two parts to RAY. Solutions of Ardrox and M.B.D. are the other two parts in RAM.

Shelf life of dry crystals: indefinite as long as dry. Keep in a cool, place.
Shelf life of mixed solution: one year.
Store in a dark bottle, in a fume hood or flammable liquids cabinet.

LP-1-0040

Rhodamine 6G, 25 grams

Amido Black is a protein dye sensitive to the properties in blood. It can be used to enhance or develop blood-contaminated latent prints. Bloody latent prints, even those not visible to the naked eye, may be developed on porous or nonporous surfaces, such as cadavers, wood, or paper. You can purchase Amido Black powder (25 gram bottle) and mix it in Glacial Acetic Acid and Methanol.

Shelf-life of Amido Black Powder: indefinite unless wetted. The working solution becomes contaminated quickly upon use. It is best to mix fresh solution if contaminated.

LP-1-0046

Amido Black, 25 grams

Ardrox is a fluorescent liquid dye which works well with lasers, Forensic Light Sources and UV lamps. Ardrox can be used full-strength or can be diluted with ethanol or methanol. Since the solution is about the consistency of syrup, most examiners prefer to dilute it. Ardrox dyes glue-fumed, developed latent prints quite well. While Ardrox-developed prints fluoresce under 365 nm, better results have been reported while examining evidence with 450-480 nm light.

Shelf life of unmixed solution: five years. Keep in a cool, dry place.
Shelf life of mixed solution: one year or longer.
Store in a fume hood or flammable liquids cabinet.

LP-1-0048

Ardrox, 1 quart

In the January/February 1995 issue of the Journal of Forensic Identification (vol. 45, no. 1), Williams D. Mazzella and Christopher J. Lennard discuss the uses of Basic Red 28 and how it compares to Rhodamine 6G, Basic Yellow 40 and Styryl 7. They concluded that Basic Red 28 has a Stokes Shift three times that of Rhodamine 6G (90 nm versus 30 nm). It can be used alone to dye stain cyanoacrylate-developed prints or can be mixed with a solution of Basic Yellow 40 to provide a wider range (about 145 nm) of fluorescence. Mix 0.2 grams of Basic Red 28 in a solution of propanol, acetonitrile and petroleum ether.

LP-1-0075

Basic Red 28, 10 grams

This new powder is premixed. Simply shake and use. Apply with latent paint brush, set for 15 seconds, then rinse with cold water. Can be used on masking, duct, clear cellophane, brown packaging and nylon reinforced strapping tapes. Consistently produces better contrast with less background staining than Sticky-Side Powder. Excellent friction ridge detail results. Indefinite shelf-life.

LP-1-0077

Wetwop