In order to fake a fingerprint, one needs an original first. Latent fingerprints are nothing but fat and sweat on touched items. Thus to retrieve someone else's fingerprint (in this case the fingerprint you want to forge) one should rely on well tested forensic research methods. Which is what's to be explained here.
Step 1
Find some good counterfeits. A good source of originals for our counterfeits are glasses, doorknobs and glossy paper. The standard method of forensic research makes them visible: Sprinkling it with colored powder, which sticks to the fat.
Step 2
Try something related to superglue. Another solution involves Cyanoacrylat, the main ingredient of superglue. A small amount thereof is poured into a bottlecap, which is then turned upside down and put over the fingerprint.
The Cyanoacrylat gasses out and reacts with the fat residue to a solid, white substance
Step 3
Get a digital reproduction. The further treatment involves scanning/photographing (Figure 5) and a bit of graphical refurbishment.
The goal is to get an exact image of the fingerprint, for further use as mold, out of which the dummy is made. The easiest way is to print the image on a transparency slide (the ones normally used for an overhead projector) with a laser printer. The toner forms a relief, which is later used similar to letter press printing. Wood glue is suitable for producing the dummy.
Step 4
Use a small dash of glycerene to optimize humidity and workability. After thorough mixing, the dummy gets coated with a thin layer of the compound.
Step 5
After the glue has dried (Figure 10), pull off the foil (Figure 11) and cut it to finger size.
Step 6
Glue the counterfeit to your own finger. Theatrical glue is used to glue the dummy onto the own finger. The new identity is ready!
