Breaking NEWz you can UzE...
compiled by Jon Stimac
Man Ordered to Trial in 1979 Slaying –
FLINT JOURNAL, MI -
June 11, 2005 ...prints
found at the scene were recently entered into the AFIS...
Cash, Charge or Fingerprint?
– NEWSDAY, NY
- June 10, 2005
...a 'little gadget' scans the index finger and
instantly deducts the money from your checking account...
Fingerprinting of Job Seekers More Commonplace –
PITTSBURGH POST GAZETTE, - June 7, 2005
...mass printing is raising concerns
among privacy advocates who question the accuracy of fingerprint
Tattoo May Be A Clue –
PAWTUCKET TIMES, RI - June 7, 2005
...tattoo lead police to their
fingerprint files which, they hope, will provide the name of the
Last week, we looked at the concept of High Dynamic Range imaging.
This week We keep abreast of latent print related information on the
internet by looking at an interesting public website article. This
material was not altered in any way from the public posting at the link below as
of yesterday, June 11.
How to fake fingerprints?
October 26, 2004 (starbug)
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).
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).
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).
3: Visualisation with superglue
The Cyanoacrylat gasses out and reacts with the fat residue to a solid,
white substance (Figure 4).
4: Print after Cyanacrylate processing
The further treatment involves scanning/photographing (Figure 5) and a
bit of graphical refurbishment (Figure 6).
5: Digitalising the print
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)
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).
8: Covering the dummy with wood glue
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.
10: Hardened glue
11: Dummy, ready to use
Theatrical glue is used to glue the dummy onto the own finger (Figure
12: The new identity is ready!
The new identity is ready!
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Have a GREAT week!