Do Now:1. Which is more reliable; testimonial evidence

or evidence found in this picture?

2. Looking at thispicture, what step(s) has the officer completed?How do you know?

Objective: SWBAT explain how to approach the initial investigation

ANNOUNCEMENTS Notebook set up Wednesday Notebook checks Thursday (AVID Kids)

Advice Contract Name tag Objectives Do now exit tickets 1/24, 1/27-1/30 7s foldable

Quiz on Monday

Exit Ticket

Remember this is done individually and silentlyComplete 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 is testimonial evidence unreliable?

Review Forensic Science Locard Exchange Principle Example 7s in order 1s 2s

4

Secure the Scene Why????

Separating the Witness Why????

Scanning the Scene Looking over the area

Primary crime scene- Secondary crime scene- example

Scanning the Scene Looking over the area

Primary crime scene- where the incident occurred

Secondary crime scene- any place that may be connected to the scene

example

Seeing the scene

“Seeing” the sceneDone by the photographer

take picturesmake videos

WHY?

Sketching the scene Record of the crime scene Helps with interrogating a suspect Help with proving the guilt of a suspect Serve as a mental picture for those not

present on the scene

Two types of Sketches:

Sketching the Scene A rough sketch on the scene An final sketch in the lab

WHY?

Evidence is measured from 2 immovable objects

Draw as quickly and as accurately as possible

Make a legend: case #, time, location and sketcher’s name, key

Rough Sketch

Crime SceneSketch

13

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

Case Number: 012812-01Sketcher’s Name: Tim MooreLocation: 4358 Rockledge Dr-master’s bed roomDate and Time: January 28, 2014 11:35 am

NW E

SKEY:

Sketch

Seeing the seevs.

Sketching the scene

What information may be included in a photo and not a sketch ?

What information may be included in a sketch and not a photo ?

Review

What is the definition of Forensic Science?

Review

Give an example of the Locard Exchange Principle?

ReviewPredict what could happen if we did not complete the 1st “s”?

Review

What is the function of the photo and sketch of the scene?

Review

Is a sketch more , less or equally as important as a photo? Why?

Review

10 seconds to

Exit Ticket

1.What are the first 4 S’s in order?2.Why are photos of the crime scene

important?3.Why is it important to measure the

evidence from two immovable objects?