Bugs to solve murder cases

1. By: Ashley Straniero & Shaun
Connolly

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

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

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

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

6. 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.

7. 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.

8. -”Flyspecks”
-Insect
Tracks
-
Regurgitation

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

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

11. Entomotoxicology

12. 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