Objective: SWBAT summarize the locard Exchange Principle

OBJECTIVE: SWBAT SUMMARIZE THE LOCARD EXCHANGE PRINCIPLE Do Now:1. What is forensic science? When/where is

forensic science used?

2. Looking at thispicture, what evidence couldbe collected and used tosolve a case

Complete the following on a sheet of paper. Write the objective and answer the questions in complete sentences. You DO NOT have to write the questions.THIS IS SILENT AND INDEPENDENT WORK.

Syllabus

http://mshinton.cmswiki.wikispaces.net/

Procedures 1. Do Now 3-6 minutes

SilentWrite objective and answer questions in comp. ntbk

(complete sentences)Will be checked at the end of the week for participation

points

2. Exit Ticket 3-6 minutes Silent Answer questions (complete sentences) Will be checked daily

Procedures

Procedures of this class

Notebooks-notes, contract

Forensic Science “Forensic science is the application of

science to those criminal and civil laws that are enforced by police agencies in a criminal justice system”

WHAT DOES THIS MEAN?

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Forensic Science “Forensic science is the application of

science to those criminal and civil laws that are enforced by police agencies in a criminal justice system”

Forensic science is the application of science to law

6

Now that we know the definition of forensic science

How do we make a case against a

criminal?

How do we find a suspect guilty or not

guilty?

What’s the job of a forensic science

team?

Locard Exchange Principle With contact between items, there will be

an exchange (visible and invisible)

In your own words…

LEP When two object come in contact with

each other, they exchange material

If an object come in contact with a (the word) , _______ could be left behind.

LEP When two items come in contact with each

other, they exchange material

If an item come in contact with a (the word) , _______ could be left behind.

FOOTBALL

Review Procedures

Do Now Notebooks

Forensic Science definition Locard Exchange Principle

QUESTIONS????

Exit Ticket 1. The teacher of this class name isA. Ms.Williams C. Ms. HintonB. Ms. Hindell D. Ms. Hilliams

2. Define forensic science?

3. How is the locard exchange principle used to convict a criminal?

Complete the following on the same sheet of paper with the Do-Nows. For the multiple choice, you may only write the letter for #2 and #3, answer the questions in complete sentences. You DO NOT have to write the questions.THIS IS SILENT AND INDEPENDENT WORK

The Seven S’s of a Crime Scene?

The Scene is simply defined as the actual site or location in which the incident took place.

Securing the Scene It is imperative that the first responding officer on the

scene protect the individuals involved as a first priority. Protecting the evidence is the second task. The entire

investigation could be dependent on this.

Why is it important to secure the scene? Scene is secured by a restricting a perimeter, utilizing rope or tape.

Entry of authorized personal is recorded. All unauthorized personal or removed to eliminate possibility of contamination or

transfer of evidence (Locard)

Separating the Witness Witnesses must not be allowed to talk

with each other. This is done so they do not compare

stories and so that a new story is not created. (collusion)

Scanning the Scene A forensic examiner needs to be able to scan the scene to

determine if there is a primary crime scene or potentially a secondary crime scene.

Primary scene- place the incident occurred Secondary scene- any other place connected to the

incident Ex. This is done by the team leader who assumes

control and assigns other duties such as who will be the : Photographer Log Recorder Sketch Artist Evidence Recorder and other personnel Specialist- entomologist, blood splatter, etc

Seeing the scene Done by the photographer

A photograph is a two-dimensional reproduction of the crime scene. It serves as the permanent record of the crime scene. Everyone involved in the investigation will have an opportunity to look at

theses photographs (the District Attorney, the defense counsel, homicide detectives, etc). They are also very important to you because the photographs will serve

as “memory joggers” when you have to get up on the witness stand and testify.

Good pictures are essential because most trials do not take place until a year

or more has passed. Videos can also be taking at the crime

Seeing the Scene This is done by the photographer Requirements of each photo: Photograph overall area from up close and

medium range and far away prior to moving anything.

Close up of each piece of evidence with evidence marker (including corpse)

Include a point of reference to indicate size. ( a ruler, a pen, a car key)

Sketching the Scene An accurate rough sketch drawn to scale

noting position of evidence and body. All objects should be measured from 2

immovable landmarks Sketch should include Case #, date, time,

locations, and assignments. Also included should be dimensions of

room, furniture, doors, windows, distance of objects or bodies from entrances and exits

Key Legend, should include direction and scale

Crime SceneSketch

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Date: August 14, 2001 Criminalist: Ann WilsonTime: 11:35 Location: 4358 Rockledge Dr

St. Louis, Mo.

A. Couch/sofa

B. Female body

C. Knife

D. Over turned Lamp

E. Chairs

F. Table

G. Fireplace

cD

E

EE

EE

A G

F

Exit Ticket

Remember this is done individually and silently2-3 complete sentences for each questionBecause you are writing in complete sentences you do notneed to write the question

1. What could happen if the 7s was done out of order?2. What may happen if the first officer on the scene forgot to

secure the scene?3. Why are photos and sketches an important part of crime

scene?