The test consists of a yellow patch on a card together with a cotton swab and wipe.

Wet the cotton swab with water or the wipe
Roll the cotton swab in the powder
Press the cotton swab against the patch
The patch will turn gray if no amine or opiate is present
A bright orange color indicates the presence of an amine or opiate
The test is conducted in only a few seconds and will pick up residue of a drug on a person's hand.