What was Dr. Edmond Locard contribution to forensic science? Objective: SWBAT explain how to approach the initial investigation SWBAT construct a diagram of a crime Do Now: What was Dr. Edmond Locard contribution to forensic science? 2. Looking at this P icture, what evidence could you collect?

Classroom Goal We will obtain the knowledge and skills to help us develop reasoning and problem solving abilities through inquiry-based instruction

Positive Behavior Syllabus http://mshinton.cmswiki.wikispaces.net/ Reference letter to mom/coach/college DJ your Friday Tracking system

Negative Behavior 1. Verbal Warning 2. Cool down station 3. Call home/coach/referral

Procedures 2. Exit Ticket 3-6 minutes 1. Do Now 3-6 minutes Silent Write 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

Forensic Science Forensic Science is the application of science to law. “Forensic science is the application of science to those criminal and civil laws that are enforced by police agencies in a criminal justice system” Also called criminalistic

Locard’s Exchange Principle Whenever 2 objects come in contact with one another, they exchange some material Locard strongly believed that every criminal can be connected to a crime by dust particles carried from the scene This material that is transferred is called Trace Evidence

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 Scene Sketch A. Couch/sofa B. Female body C. Knife c Date: August 14, 2001 Criminalist: Ann Wilson Time: 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 E c D G A E E E F E

Exit Ticket Remember this is done individually and silently 2-3 complete sentences for each question Because you are writing in complete sentences you do not need to write the question What could happen if the 7s was done out of order? What may happen if the first officer on the scene forgot to secure the scene? Why are photos and sketches an important part of crime scene?