Forensic Entomology
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Transcript of Forensic Entomology
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Forensic Entomology
By: Ashley Straniero & Shaun Connolly
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From the Beginning…
First discovered by Francesco Redi (17th Century)
Exposed vs. Unexposed Meat Spontaneous Generation Theory
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Insects at the Crime Scene
Flies vs. Beetles Blow Flies and Flesh Flies are first to
inhabit a body (Calliphoridae and Sarcophagidae)
(Sexton beetle)
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Weather and Observations of Body
Sun vs. Shade Position of Body Inside vs. Outside Maggot Mass Temperature Air Temperature Soil Temperature
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Collection of Bugs
First appeared bugs are captured first (very fast retrievers)
Ethyl Acetate to immobilize bugs (75%) Properly label bugs (graphite only)
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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.
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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.
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Insects & Blood Spatter
-”Flyspecks”-Insect Tracks-Regurgitation
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Diversity of Forensic
Entomology-Child Abuse-Elderly Abuse-Animal Abuse-Car Accidents
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Subdivisions
-Urban-Stored-Product-Medico-Legal
Video
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Entomotoxicology
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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&dq=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%20evidence%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-eZP2FeeYG7/1Forensic entomology. (n.d.). Forensic entomology. Retrieved April 1, 2013, from
http://www.forensicentomology.com/definition.htm