Procedures

1.Ask one of my people to dip their finger lightly in water.

2. The person will place their finger on one of the surfaces (wood, marble, or granite)

3.Grind up some graphite, and fold inside a piece of paper then spread lightly over a smooth surface.

4.When the print becomes defined, blow lightly over the surface.

5. Use Clear Sellotape and stick to surface.

6. Stick the fingerprint to a piece of stiff white paper (Twice a day(Except for control group which are tested once every 5 days to make sure they're not disturbed)).