Forensic Entomology

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Information about Forensic Entomology
Education

Published on March 15, 2014

Author: shaunconnolly10

Source: slideshare.net

Description

Bugs to solve murder cases

By: Ashley Straniero & Shaun Connolly

From the Beginning…  First discovered by Francesco Redi (17th Century)  Exposed vs. Unexposed Meat  Spontaneous Generation Theory

Insects at the Crime Scene  Flies vs. Beetles  Blow Flies and Flesh Flies are first to inhabit a body (Calliphoridae and Sarcophagidae) (Sexton beetle)

Weather and Observations of Body  Sun vs. Shade  Position of Body  Inside vs. Outside  Maggot Mass Temperature  Air Temperature  Soil Temperature

Collection of Bugs  First appeared bugs are captured first (very fast retrievers)  Ethyl Acetate to immobilize bugs (75%)  Properly label bugs (graphite only)

Estimating Time of Death  PMI (Post Mortem Interval)  Identifying types of species of insects – Rate of development  Tampering with the results: season, temperature, sun exposure, etc.

Sequence of Insect Arrival  1st Responders=Blow Flies which are attracted to the foul odor (several hours after death)  2nd Responders=Flesh Flies appear directly after or at the same time as Blow Flies  Under certain weather conditions, the Flesh Fly will appear first since they can fly during rainfall.

-”Flyspecks” -Insect Tracks - Regurgitation

Diversity of Forensic Entomology -Child Abuse -Elderly Abuse -Animal Abuse -Car Accidents

-Urban -Stored- Product -Medico- Legal Vide o

Entomotoxicology

Work Cited Briscoe, T. S. (n.d.). Crime and Forensic Blog | The National Museum of Crime and Punishment. Washington D.C. Museum - Crime Museum. Retrieved April 1, 2013, from http://www.crimemuseum.org/blog/category/forensic-science/ Champion, D. J. (n.d.). The American Dictionary Of Criminal Justice: Key Terms And Major Court Cases - Dean J. Champion - Google Books. Google Books. Retrieved April 1, 2013, from http://books.google.com/books?id=w5_jF7YIPzYC&pg=PA104&lpg=PA104&d q=en tomological+evidence+proves+elder+abuse&source=bl&ots=32UWci- cQs&sig=qzramZxRDL6dGWcuV6-7hXrtA3U&hl=en&sa=X&ei=49BZUfe- D6ns0gGB_YBI&ved=0CFoQ6AEwBA#v=onepage&q=entomological%20evi dence% Domain Names, Web Hosting and Online Marketing Services | Network Solutions. (n.d.). Domain Names, Web Hosting and Online Marketing Services | Network Solutions. Retrieved April 1, 2013, from http://www.forensic-ent.com/ Entomotoxicology | DeepDyve. (n.d.). DeepDyve - The simplest way to get the articles you need. Retrieved April 1, 2013, from http://www.deepdyve.com/lp/elsevier/entomotoxicology-eZP2FeeYG7/1 Forensic entomology. (n.d.). Forensic entomology. Retrieved April 1, 2013, from http://www.forensicentomology.com/definition.htm

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