Breaking NEWz you can UzE...
compiled by Jon Stimac
Students Learn Science Of Crime –
LONG BEACH PRESS-TELEGRAM, CA - Nov. 28,
aren't too many high school classes where students splash simulated
blood onto cardboard or make plaster casts from bite marks...
Canadian Forensics Technology Stars In CSI –
CBC EDMONTON, CANADA - Nov. 25, 2004
...a Calgary-designed technology that
lifts fingerprints from dangerous packages before it is destroyed
was recently featured on the popular detective show...
DIY Fingerprint Idea Thwarts ID Thieves –
REGISTER, UK - Nov. 24, 2004
...UK man insists that credit can only
be extended in his name on production of a thumbprint...
Jurors Focus On Fingerprints –
CNN, GA - Nov. 23, 2004
...expert testified that he used
several processes to lift prints from an empty prescription bottle
but was unable to find a single trace...
we looked at a recent procedure published by the UK Police Scientific
Development Branch as distributed by the FBI FSC to insure the accuracy and integrity of
we examine a web page from http://www.xs4all.nl/~dacty/, the website of Hans van
den Nieuwendijk from the Netherlands. On his Incipient Ridges page, he
relates some excellent information and images of incipient ridges. For the
images, visit his web page on incipients:
Incipient ridges are also called “Interpapillary Lines”, “Interstitial,
Rudimentary or Nascent Ridges”.
They occur in the furrow between the papillary lines on the volar epidermis.
They are smaller, lower and mostly shorter than normal papillary lines. There
are no sweat glands present.
On the left site a print from the original finger on the right site.
The incipient ridges can be seen in both pictures.
Incipient Ridges develop a little bit later than papillary lines. They develop
from the same basis formation but there grow stops at the same time as the grow
from papillary lines.
That is why they do not develop further and stay shorter and lower.
Incipient Ridges develop in the same way as normal lines. They have the same
structures and are also permanent and invariable.
One can not give a clear border between a Incipient Ridge and a Papillary line.
Incipient Ridges vary in adultness; there are small low lines and width almost
lines. A Incipient Ridges can start or stop as a papillary line.
Incipient Ridges occur in about 45% of all people. But not in all fingers they
occur in about 3 fingers average. From those figures we can say that Incipient
Ridges are in 13.5% from all fingers.
Ridges can be seen in different proportions. One time they are greater, fatter
and more visible than other times. Sometimes a line formation occurs as single
dots other times as a longer stripe. That can be explained in different ways.
Incipient Ridge is lower. More or less pressure explains there visibility on
- They also
can be damaged, and grow back in there normal proportions.
- The older
one gets the more visible an Incipient Ridge can be. At persons under 20 year of
age they occur in 34%, above the 20 in 52%. That can be explained because adults
have bigger fingers where the papillary lines have more space between them and
the fact that the skin from older people wears more because of work and age.
INCIPIENT RIDGES IN RELATION WITH PRESSURE ON THE SURFACE.
important factor on there visibility is the pressure in relation with the
surface. Sometimes an Incipient Ridge can be seen as a normal papillary line.
That’s a result of the fact that more pressure shows an Incipient Ridge more.
The more pressure on the surface the better an Incipient Ridge can be seen!
The next 4 pictures show the same part of a fingerprint but the pressure on the
surface is at each picture a little bit more.
The first picture
shows at (a) and (b) small Incipient Ridges. The last picture shows the same
two points at (a) and (b) but it not so clear if it is an Incipient Ridge or an
papillary line. The line is only a fraction smaller, the separate dots joined
into a united line and even a sweat gland can be seen (look at the circle at
picture 2 below).
Ridge can be seen as an Incipient Ridge or as a papillary line. That depends on
the pressure that took place on the surface. Differences in a comparison can be
explained as a result of pressure.
LOT OF MINITUAE IN A SMALL PART OF A FINGERPRINT.
Incipient Ridges are very useful in the identification process. It is possible
to identify a very small part of a fingerprint as can be seen in picture 3 and
4! The red dots refer to the normal minutiae and the blue dots to the Incipient
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