Update. NIST has offered a new updated guide for building
21st century forensics labs. The new detailed guide offers advice for law enforcement agencies
on the planning, design, construction, and relocation of forensic science laboratories.
It also outlines the process of creating a new crime lab from start to finish, and provides
guidance on integrating the latest scientific developments, efficiency improvements, and
sustainability practices. The guide is available for download as a pdf so if you'd like a copy
of your own, please click on the link in the video description below.
NFSTC has made available a new online course
entitled Intermediate Crime Scene Investigation. The course provides expanded skills and knowledge
for investigators, students interested in pursuing forensic science, corrections agencies,
death investigators, tribal agencies and anyone interested in more advanced evidence collection
techniques. The class takes approximately 16 hours to complete, and users will have
access for 60 days after purchase. A certificate of completion will be issued to students successfully
completing the course.
For more information, click on the link embedded in the video description
below, or log on to NFSTC.Org. The blowfly, an insect that has long been
useful to forensic scientists when determining time of death in murder investigations, has
begun an unexpected shift North of its usual habitat. The life cycle of the blowfly, which
detects the decomposition of a body and uses it as an incubator when laying eggs, can be
used to estimate how long a victim has been deceased. The problem with the flies moving
North, however, is determining how they will interact with their new environment.
The migration
could throw off their development by slowing it or speeding it up, thereby making time
of death determinations more difficult to decipher. To combat the problem, entomologists
plan to study these interactions between species, thereby understanding the changes in development
and applying that knowledge to forensic investigations. Forensic toxicologists are hoping that bone
tissue has the potential to be a useful if not limited tool when determining if a controlled
substance has been ingested by a victim. Even though early studies have proved that a number
of drugs can be found in bone, data is limited due to the affects of extraneous factors such
as burial and variation of drug detection within the same skeleton.
Bones are useful
in decomposed or skeletonized cases where it is not possible to obtain body fluids.
Research on the detection of drugs in bone is only in its early stages and interpretation
of the analysis of a bone's drug content is complicated, so further work is needed before
bone can be a reliable source for toxicology results.. The technique of the week just keeps on rolling!
Scott Campbell of Ron Smith and Associates is back with another installment of his "Collecting
Tire Exemplars" presentation. Click on the embedded link for part 4 of the 7 part series. Do you have a question about forensic science
techniques or CSI Myths? If so, we would love to hear from you! Send your questions to us
at info@nfstc.Org and your email could be featured on our next Forensics Update.
Until
Next Time, I'm Bill Duffin for NFSTC..
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