Forensic Entomology An Introduction Biol450 t0ylOJABgHSS1fcV5jewg2zyw.
Forensic Entomology
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Transcript of Forensic Entomology
Forensic Entomology
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.
Insects & Blood Spatter
-”Flyspecks”-Insect Tracks-Regurgitation
Diversity of Forensic
Entomology-Child Abuse-Elderly Abuse-Animal Abuse-Car Accidents
Subdivisions
-Urban-Stored-Product-Medico-Legal
Video
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&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