Aqueous Leucocrystal Violet ALCV is used to enhance and develop latent prints stained with blood on porous and nonporous surfaces. It can be used to stain blood marks on shoeprints, swipes and other areas where a suspect or victim walked, was dragged or, somehow, came in contact with the surface. While this solution is an indicator for blood, it may react with other substances not specific to blood. Three bottles are included in each kit, which should be mixed in precise order. Unmixed ALCV solution has a shelf-life of one year. Once mixed, the solution has a shelf-life of three months if stored in a cool place.
