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What is Forensic SciencUnit 1

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Is it?

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Cracking open the case...

What is forensic science?

__________________________

Usually refers to:scientific stud

evidence to discover the facts in criminal or civil matter

new technology has made this a

rapidly growing field

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What it is and its not?

It is not =kicking down doors, interrogating suspects, speculascenarios, multiple expertise, dna analysis in a day

It is = no judgments, speculations or interrogating, and usuallexpertise, it could take weeks/months to

The CSI effect

.Well the good news is.increase in applications to forensic sresearch programs at universities...More scientists = yay!!!! :)

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Different specialities

Criminalistics Crime Scene Investigation Forensic Medicine Forensic Toxicology Forensic Entomology

Forensic Engineering Forensic Dentistry Forensic Art Forensic Psychology and Psychiatry

Jurisprudence

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How can you become a forensicscientist?

Keep an open mind...what are you good at? Dont worry if you're not a science person Rewards of an exhilarating career for extra work Any course that sharpens your skills of analysis w

useful.

A bachelors degree in science good note taking skills ability to write understandable scientific reports good communication

good ethics and and personal integrity :)

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So what do you think...

should shows like CSI

and Law and Order be

taken off the air due to it

complicating real life

crimes, otherwise known

as the CSI EFFECT?

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History and Origins

Forensic = latin, meaning of or beforforum

Ancient Rome China, 1247Mathieu O

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Famous Scientists

Francis Galton Edmond Locard Hans Gross

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Two Landmark Cases

Frye v. United States What will the court except as scientific evide questioned procedure must be generally ac

Daubert v. Merrell Dow Pharmaceutic Frye is not the only standard for submitting

evidence

The judge must act as the gatekeeper in m

sure it is both reliable and relevant to th

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Nothing but the truth!

Forensic scientiexpert witnesseOnly witnesses a

to state their opcourt. However,to be accurate,objective, and fa

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Why this is such a big deal!

The difference between an expert witnand and an eyewitness

Eyewitness must only tell what they

personally heard or saw. Eyewitness testimony is often unreliab Depends on perception of that person

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CRIME SCENE

The process of the scientific method is

essential for a crime scene! So...what 1st happens at the crime sce

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What happens at a crime scene?

1. Secure and protect the integrity of the c.s.2. Do not disturb the evidence

3. Crime scene investigators (CSI) gather info and document aka w

-determine what type of scene

primary or secondary

-types of evidence

-mental note of points of entry/exit

-mentally reconstruct or put together the events

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4th Amendment

The Fourth Amendment(Amendment IV)to the United States Constitutionis the part of the

Rightsthat prohibits

________________________________________

________________________________________

________________________________________

________________________________________

________________________________________

____________________.

http://en.wikipedia.org/wiki/United_States_Bill_of_Rightshttp://en.wikipedia.org/wiki/United_States_Bill_of_Rightshttp://en.wikipedia.org/wiki/United_States_Constitutionhttp://en.wikipedia.org/wiki/United_States_Bill_of_Rightshttp://en.wikipedia.org/wiki/United_States_Bill_of_Rightshttp://en.wikipedia.org/wiki/United_States_Bill_of_Rightshttp://en.wikipedia.org/wiki/United_States_Constitution

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Obtaining the search war

Only __________may issue search warrantsTo obtain a warrant, ______________ mustthat there is probable cause to believe a seajustified.

Officers must support this showing with______________________, and must descrparticularity the place they will search and titems they will seize.

http://topics.law.cornell.edu/wex/probable_causehttp://topics.law.cornell.edu/wex/probable_cause

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Goals of the Crime Scene Search

1. Provide info on the Corpus Delicti2. Provide info on Modus Operandi

3. Links a suspect with a victim

4. Links a person with a crime scene

5. Disproves or supports an alibi

6. Identifies a suspect

7. Provides investigative leads

8. Identifies unknown substances

I t f

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Importance of our sensesobserving

As a CSI, its important to have keenobservation skills

You only get one chance to search the

Viewing the crime scene as a whole...kopen mind

Look for what is present and what is m

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Locards Exchange Princi

There are two theories behind crime scensearches

1. Linkage Theory-

2. Locards Theory of Exchange -

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Methods of searching crime scenes

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Documenting the Crime Scene

Taking meticulous notes

Video taping the crime scene

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Documenting the Crime Scene (cont)

Photographing the crime scene

Making a diagram of the crime scene

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Physical Evidence

How to properly collect evidence:

Evidence Classification:

i id i h h i

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Keeping evidence in the proper chaicustody