So you have a crime scene… Goal: Attain physical evidence Goal: Attain physical evidence Secure the area Secure the area Record scene Record scene Rough.

Slides:

Advertisements

Similar presentations

Review Units 2 and 3 Physical Evidence. What does the 1 st officer at the scene need to do after obtaining medical assistance? Secure the Scene Physical.

Advertisements

Collection of Physical Evidence at a Crime Scene Chapter 2/ O’Connor.

Physical Evidence Chapter 3: Physical Evidence

Chapter 3 Physical Evidence.

The Crime Scene bsapp.com. Approaching a Crime Scene bsapp.com.

CSI vs. “CSI” 1. How is real CSI similar to TV CSI?

Crime Scene Processing the Crime Scene.  “Physical evidence encompasses any and all objects that can establish that a crime has been committed or can.

Honors Forensic Science.  Crime Labs “run” on physical evidence  Physical Evidence = any and all objects that can establish that a crime has been committed.

The Crime Scene. Locard’s Principle Dr. Edmond Locard Dr. Edmond Locard Director of the world’s first forensic lab in France Director of the world’s.

SEPTEMBER 24, 2012 WARM-UP: STANDARD: SFS1c Determine the proper techniques to search, isolate, collect and record physical and trace evidence. EQ: What.

Types of Evidence bsapp.com. Documents Hand written Hand written Type or Printed Type or Printed Authenticity? Authenticity? bsapp.com.

Physical Evidence bsapp.com.

Chapter 2.  Any and all objects that can establish that a crime has been committed or can link a crime and its victim or perpetrator  Physical evidence.

3-1 ©2011, 2008 Pearson Education, Inc. Upper Saddle River, NJ FORENSIC SCIENCE: An Introduction, 2 nd ed. By Richard Saferstein PHYSICAL EVIDENCE.

Forensic Science T. Trimpe 2006

Chapter Physical Evidence. OBJECTIVES (don’t write) Review the common types of physical evidence encountered at crime scenes, Explain the difference.

Crime Scene Processing the Crime Scene.  “Physical evidence encompasses any and all objects that can establish that a crime has been committed or can.

3-1 PRENTICE HALL ©2008 Pearson Education, Inc. Upper Saddle River, NJ FORENSIC SCIENCE An Introduction By Richard Saferstein PHYSICAL EVIDENCE Chapter.

Unit 2: Evidence Please pick up Unit 2 Packet A!.

Physical Evidence Chapter 3. Types of Physical Evidence Blood, semen, saliva Document Drugs Explosives Fibers Fingerprints Firearms and ammunitions Glass.

Physical Evidence Forensic Fuel Chapter 3. Lecture Highlights  Negative Controls  Comparison and Identification  Class vs. Individual Characteristics.

The Crime Scene: Collecting Evidence Today’s Lesson Question: What is the proper way to process a crime scene?

Evidence Collection. What evidence? What types of evidence should be collected at a crime scene? What types of evidence should be collected at a crime.

Investigators must recognize, preserve, and record physical evidence in its original condition. They must also protect the area.

FORENSIC SCIENCE. 1.Collection of Physical Evidence 2.Analysis of Physical Evidence 3.Provision of Expert Testimony.

Chapter 2 The Crime Scene. Crime Scene The location & surrounding areas where a crime has been committed.

The Crime Scene.  The location & surrounding areas where a crime has been committed.

Do now: What types of things should be in a crime scene sketch?

O’Connor/Chapter 3. Common types of physical evidence  Blood, semen, & saliva  Documents  Drugs  Explosives  Fibers  Fingerprints  Firearms & ammunition.

Evidence Collection Notes on Page

NOVEMBER 7, 2012 WARM-UP: STANDARD-SFS1b. Distinguish and categorize physical and trace evidence. EQ: How is physical evidence analyzed? Sit quietly, and.

STOP! The FIRST critical step when dealing with a crime scene is: TO SECURE THE CRIME SCENE ;so none of the evidence is jeopardized.

Civil vs. Criminal Law CIVIL LAWCRIMINAL LAW  filed by a private party. o a corporation o an individual person  Penalty: a guilty defendant pays the.

Physical Evidence. Examples shown are possible evidence that may be found and collected at the crime scene, but are NOT all inclusive.

Chapter 3 Physical Evidence. Common Types of Physical Evidence Blood, semen & saliva Blood, semen & saliva Documents Documents Drugs Drugs Explosives.

The Crime Scene Investigation (CSI) Team Team of legal and scientific experts who work together to process a crime scene and evaluate the evidence. Divided.

Forensic Science -Debatable -Is the application of science to those criminal and civil laws that are enforced by police agencies in a criminal justice.

CJ II / Physical Evidence Skills USA. What is Physical Evidence? The definition depends somewhat on who you ask. PE consists of objects and things: –Can.

Unit 2: The Crime Scene Mr. Ross Brown Brooklyn School for Law and Technology.

Analyzing the Crime Scene Chapter 2 Forensic Science bsapp.com.

1 Forensic Science Chapter 3: Physical evidence. 2 Biologicals Blood, semen, and saliva.  Liquid or dried  Human or animal  on fabrics  Cigarette.

The Crime Scene.

PHYSICAL EVIDENCE.

An Introduction to Evidence

The Crime Scene bsapp.com.

Chapter 3 PHYSICAL EVIDENCE.

The Crime Scene Chapter 2 Beginning of new chapter.

The Crime Scene.

Collection of Physical Evidence at a Crime Scene

Forensic Science:The Crime Scene (Unit II) Physical Evidence- all objects that can establish whether a crime has been committed or can link a crime to.

Types of Evidence bsapp.com.

Types of Evidence bsapp.com.

The Crime Scene bsapp.com.

How to Process the Crime Scene

Forensic Science Ms. MacCormack Spring 2017

The Crime Scene.

Evidence "Anything which is legally submitted to a competent tribunal as a means of ascertaining the truth of any alleged matter of fact under investigation.

Chapter 2 The Crime Scene

Types of Evidence bsapp.com.

Physical Evidence Common types of Physical evidence Identification of comparison of Physical evidence Individual and class characteristics Class evidence.

Bonjour! Do Now: take out HW Agenda: Crime Scene Jon Benet Case HW:

Physical Evidence.

Collection of Physical Evidence at a Crime Scene

Roles of the Forensic Scientist

Physical Evidence.

The Crime Scene.

The Crime Scene bsapp.com.

The Crime Scene bsapp.com.

The Crime Scene bsapp.com.

Presentation transcript:

So you have a crime scene… Goal: Attain physical evidence Goal: Attain physical evidence Secure the area Secure the area Record scene Record scene Rough sketch & photography Attention to details! Finish sketch Finish sketch Valuable as can add what photos cannot Notes Notes Systematic search for evidence Systematic search for evidence

What is collected & analyzed? Victim’s clothing Victim’s clothing Fingernail scrapings Fingernail scrapings Head & pubic hairs Head & pubic hairs Blood (DNA typing) Blood (DNA typing) Vaginal, anal, oral swabs Vaginal, anal, oral swabs Recovered bullets Recovered bullets Hand swabs Hand swabs All must be properly labeled & handled to prevent contamination Legal ramifications Legal ramifications Chain of Custody- known quantity Chain of Custody- known quantity

Types of physical evidence: Blood, semen, saliva DocumentsDrugsExplosivesFibersFingerprints Firearms & ammo GlassHairImpressions Organs and physiological fluids

Paint Petroleum products Plastic bags Polymers Powder residues Serial numbers Soil & minerals Tool marks Vehicle lights Vegetative matter (location)

Comparison is the key Do the suspect’s specimen match those of the reference specimen? Hair, paint chip, or fiber example Hair, paint chip, or fiber example Individual Characteristics Evidence that can be attributed to one common source w/ high degree of certainty Evidence that can be attributed to one common source w/ high degree of certaintyFingerprints Bullet markings Class Characteristics Evidence that can only be associated with a group (not a single source) Evidence that can only be associated with a group (not a single source) Automobile paint Blood type