Presumptive Blood Tests
These presumptive blood tests are designed to be a simple one shot test for the presence of blood. This portable test will fi t in your pocket and allows you to test suspect stains without taking the time to mix chemicals. Simply place a small quantity of the stained material or a portion of a swabbing of the stain into the kit and crush the color-coded vials in sequence. Their formulation has long been accepted by the courts and proven in the fi eld. These kits will automatically let you know if it has expired thus minimizing the chance of a negative reading.