PPT-Blood can provide various evidence to investigators at a crime scene

Blood spatter patterns can be used to reconstruct a crime scene and show how an attack was made Blood can connect an object with a crime ex Discarded weapon Blood can connect a . and . Evidence Collection. Physical Evidence. Any and all objects that can establish that can establish that a crime has or has not been committed or can link a crime and its victim or perpetrator. In order to be useful it must be collected, preserved and properly analyzed by forensic experts. …. Most people are familiar with forensics as it is portrayed on television in such things as CSI, NCIS and other detective programs.. NCIS. WHAT IS FORENSIC PATHOLOGY?. Forensic Pathology:. Forensic pathology. Criminal Investigations/O’Connor. The Significance of Physical Evidence. Forensic Science is unable to assign an exact or even approximate probability values to the comparison of most class physical evidence. . and . Evidence Collection. Physical Evidence. Any and all objects that can establish that can establish that a crime has or has not been committed or can link a crime and its victim or perpetrator. In order to be useful it must be collected, preserved and properly analyzed by forensic experts. Criminal Investigations/O’Connor. The Significance of Physical Evidence. Forensic Science is unable to assign an exact or even approximate probability values to the comparison of most class physical evidence. . Objective: Differentiate between the different types of . evidence. Edmond Locard . (1877-1966). Locard’s Principle. : . There always an exchange or transfer of material when two objects come into contact. Textbook pag. e. 167. I. Introduction. A. Forensic science begins at the crime scene.. B. Four steps of Crime Scene Investigation (CSI). Recognition—scene survey, documentation, collection. Identification—comparison testing. You are sitting at your desk. What are you in contact with? What possible transfer of material could have taken or is taking place? . MAKE A LIST. ! How could you have prevented any transfer if you had thought about it first? What transferred material could be traced to you directly?. Textbook pag. e. 167. I. Introduction. A. Forensic science begins at the crime scene.. B. Four steps of Crime Scene Investigation (CSI). Recognition—scene survey, documentation, collection. Identification—comparison testing. Chapter 2. The Crime Scene. Physical Evidence. . Any and all objects that can establish that a crime has been committed or can provide a link between a crime and its’ victim or a crime and its’ perpetrator. Accurately portrays the physical facts. Relates the sequence of events at the scene. Establishes the precise location and relationship of objects and evidence at the scene. Creates a mental picture of the scene for those not present. document. , and . collect. evidence at the scene of a crime. Solving the crime will depend on piecing together the evidence to form a picture of what happened at the crime scene.. Evidence & Crime Scene Investigation. Snowflack. , Ph.D.. www.edvotek.com. EDVOTEK. The . Biotechnology Education. Company. Celebrating OVER 30 years . of science education!. Today’s Experiment: . DNA Fingerprinting. Many types of evidence is found at crime scenes. 1. SFS1. Students will recognize and classify various types of evidence in relation to the definition and scope of Forensic Science. . b. Distinguish and categorize physical and trace evidence (e.g. ballistics, drugs, fibers, fingerprints, glass, hair, metal, lip prints, soil, and toxins). .