UPDATES ON CLPEX.com
Rodney Shenck wanted me to
be sure to mention the University of Southern Mississippi's Third Annual
"Forensic Science Seminar At Sea", August 6-13, 2006. The seminar
takes place aboard the Carnival Cruise Lines departing from Galveston, Texas
with stops in Montego Bay, Jamaica, Grand Cayman, & Cozumel, Mexico.
Instructors include Dr. Henry Lee,
Dr. Robert Barsley, Dr.
Mary E. Case, Karen Chabert, Gary Hargrove, Deborah St. Germaine, and Dr.
Doug Ubelaker. Rates range from $1,170 to $1,495 depending on
participation and room selection. For more details, visit the link
we looked at a recent study on the
accuracy of latent print examination.
we look at several references on the use of
nanoparticles for latent print development, an area that offers promise in
Nanoparticles clearly finger the culprit
08 November 2003
Exclusive from New Scientist Print Edition
Oil-seeking nanoparticles could give police the clearest
fingerprints yet, suggests new research.
Law enforcement officers currently search for prints by
dusting a crime scene with fluorescent powder. This sticks to the oily
residue left by the fingertip, showing up the whorls and ridges. But
sometimes the prints are not clear enough to finger a suspect.
The new dust made of sticky nanoparticles could help. The
powders used today work because oily prints have a natural tackiness. But
the nanoparticle dust being developed at the University of Sunderland in the
UK will actively seek out any oil.
The nanoparticles are tiny glass spheres between 200 and
600 nanometres in diameter. As well as being speckled with a fluorescent
dye, they are coated with hydrophobic molecules, which are repelled by water
and attracted to oil. So they fix tightly to the fingerprint.
Fred Rowell, who is leading the research, says the
nanoparticles should pick out even the faintest of fingerprints because they
stick to tiny traces of oil. And the prints should be much sharper,
providing fine detail that can be crucial to identifying a print, such as
how ridges in the print branch and finish.
While the research is in its early stages, Rowell hopes he
piqued the interest of the police by presenting the project at the
Nanotechnology in Crime Prevention and Detection conference held in London
Glowing Fingerprints Plan Backed
Forensic experts hope proposals for a new research project will lead to the
first major breakthrough in fingerprint technology for over 20 years.
The research will involve the use of microscopic (nano) particles which can
bind to fingerprints to make them glow.
Northamptonshire Police Scientific Support Unit and scientists at St
Andrew's University in Fife, Scotland will carry out the research.
The project is expected to last two years and could cost about £250,000.
Head of Northamptonshire Police Scientific Support Dr John Bond said: "If
we are successful it will have a tremendous impact on enhancing fingerprints
and hence increase fingerprint detections and will be the first major step
forward in fingerprint technology since the 1980s.
"Amongst other things it will help solve the problems of seeing
fingerprints on surfaces where the contrast against background is poor and
also on surfaces that have become wet.
"The end result will mean that police find more fingerprints and detect
The research project has been approved but funding is now being sought
from industry, the Forensic Science Service and the Home Office.
Roland E. Menzel's ongoing work before he recently passed away was:
"the universal application of lanthanide complexes and photoluminescent
semiconductor nanoparticles to latent fingerprint detection in concert with
time-resolved imaging for background fluorescence suppression."
(http://www.phys.ttu.edu/~menzel/fscipub.html) - "Current Research"
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