Model 200 Crime Scene Kit This kit contains more of the supplies you need at the crime scene to help you process for latent prints and collect physical evidence and elimination prints from the victims. It includes four polypropylene boxes containing products for regular and magnetic latent print processing, as well as lift tape and backing cards for lifting. The Model 200 Crime Scene Kit also includes a complete kit box containing everything necessary for rolling fingerprints for elimination purposes. An evidence collection and documentation kit is included, containing evidence labels and sealing tape. Because each kit is stored in a separate box, it helps prevent contamination, keeps your crime scene kit clean and orderly and allows you to easily distribute the workload at the crime scene. •Contains all the supplies you need to process latent prints, collect physical evidence and elimination prints. •Helps prevent contamination •Keeps your crime scene kit clean and orderly

Crystal Violet, 25 Grams Use Crystal Violet to develop latent fingerprints on the adhesive side of almost any kind of tape, e.g., Scotch, electrical, Kraft, etc. Mix the powder in water, soak the tape in the solution and rinse with running tap water. The caution about working with Crystal Violet powder or solution is that it is a very messy dye and will stain skin, clothes, floors and counter tops. It may be very difficult, if not impossible, to remove the stains from some clothing, furniture and floor covering. Crystal Violet is also often used as a "theft detection powder." The item is first VERY lightly dusted with the powder and when the item comes into contact with moisture (for example, the thief's hands), it turns dark purple and stains anything that comes into contact with it. However, this use is NOT suggested due to the messy nature of the product and the fact that the stains DO NOT come out of most surfaces. NOTE: More Info in the Long Description Shelf-life of Crystal Violet powder: indefinite. The working solution should not be kept much longer than 3-6 months. While older solutions may continue to work, the results might not be as good.