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

a prism

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.

It should work really well.

Hope you catch the criminal!*

*just kidding. If there is a criminal, call the police.