How to fake fingerprints

How to fake fingerprints?

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 elses 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. (Figure 1).

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Figure 1: Fat residue from fingerprint

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 (Figure 2).

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Figure 2: Visualisation with graphite powder

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. (Figure 3).

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Figure 3: Visualisation with superglue

The Cyanoacrylat gasses out and reacts with the fat residue to a solid, white substance (Figure 4).

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Figure 4: Print after Cyanacrylate processing

The further treatment involves scanning/photographing (Figure 5) and a bit of graphical refurbishment (Figure 6).

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Figure 5: Digitalising the print

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Figure 6: Brushing up the image of the print

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 (Figure 7)

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Figure 7: Wood glue for the dummy

A small dash of glycerene may be used to optimize humidity and workability. After thorough mixing, the dummy gets coated with a thin layer of the compound (Figure 8,9).

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Figure 8: Covering the dummy with wood glue

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Figure 9: Glue layer on the printout

After the glue has dried (Figure 10), it is pulled off the foil (Figure 11) and is cut to finger size.

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Figure 10: Hardened glue

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Figure 11: Dummy, ready to use

Theatrical glue is used to glue the dummy onto the own finger (Figure 12).

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Figure 12: The new identity is ready!

The new identity is ready!

biometrie(at)ccc.de

Just use someone elses hands.:unsure:

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Originally Posted by 99%

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.

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Also known as "How to get a bottlecap stuck to your finger". :lol:

this is like B/E 101

can't you just wear gloves?

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Originally Posted by DarthInsinuate

can't you just wear gloves?

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ya but a true crimnal would go fo the gusto and change them permantly!
by jus using a acid base substance and burn the prints diffrent lil by lil
kinda like when u scar yourself that part of the skin does'nt grow back the same but with fingerprints they can thats y you either hav to hav them laser'd or burned ...gloves are good but they also can be shit cuz evidence is left in the glove ..sweat, tissue from your skin also if anyone found it.
best bet to me is earse your fingerprint by burning them diffrent ;)

Quote:

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Originally Posted by bujub22

ya but a true crimnal would go fo the gusto and change them permantly!
by jus using a acid base substance and burn the prints diffrent lil by lil
kinda like when u scar yourself that part of the skin does'nt grow back the same but with fingerprints they can thats y you either hav to hav them laser'd or burned ...gloves are good but they also can be shit cuz evidence is left in the glove ..sweat, tissue from your skin also if anyone found it.
best bet to me is earse your fingerprint by burning them diffrent ;)

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Maybe not robbing anywhere would also work :unsure:




Hi, Joob - Dave wanted me to ask about teh gepwear ;)

you could varnish your finger tips that might work,2pairs of surgical type gloves works,apparently they can still get a print through one?Too much watching of CSI :)

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Originally Posted by manker

Maybe not robbing anywhere would also work :unsure:




Hi, Joob - Dave wanted me to ask about teh gepwear ;)

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i aint drawn shit since life threw a curve ball at me :frusty:
but i swear to make some more when shits better ;)

Quote:

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Originally Posted by bujub22

i aint drawn shit since life threw a curve ball at me :frusty:
but i swear to make some more when shits better ;)

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Hope things get better for ya soon http://www.frodenkvist.com/forums/st...lt/thumbup.gif

Btw, new url for t'Moderation.

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Originally Posted by manker

Hope things get better for ya soon http://www.frodenkvist.com/forums/st...lt/thumbup.gif

Btw, new url for t'Moderation.

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http://www.frodenkvist.com/forums/st...lt/thumbup.gif