BlueClue is a field test for the detection of nitrates found in gunpowder. You get instant presumptive results.
- Lift the gunshot residue from the suspect area using the included transparent lifter.
- Place the lifter inside the included bag. Break the included ampule.
- Place the ampule in the bag and close it. After several seconds small blue specks will appear to indicate a positive presumptive result for nitrates in gunpowder.
- The kit includes more detailed directions