Collected a bunch of finger prints?
Got hold of a bunch of suspects?
Tired of clunky, unsteady magnifying lenses?
This will make things go much easier!
Step 1: You Will Need:
1 small torch
the suspect's fingertip.
Step 2: Arrangement
Place the finger on one of the FLAT sides of the prism,
then shine the torch on the other end.
Step 3: Inspect
It should work really well.
Hope you catch the criminal!*
*just kidding. If there is a criminal, call the police.