Law
University of Phoenix Biological evidence of Crime Scene Case Study

CJS 215

University of Phoenix

CJS

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CJS/215 v4 Introduction to Forensics Crime Scene: Biological Evidence Part 1: Find, Identify, and Preserve One of the aspects of forensic science that can help solve crimes for years is biological evidence. Consider a crime scene that your team might have been called to this week. The supervisor of your crime scene unit wants to see what you have learned. For Part 1, identify at least 5 different types of biological evidence and explain how to collect and preserve it. Biological Evidence Collection Method Preservation Method Part 2: Significance of Evidence In Part 1 you identified various types of biological evidence your unit located at a crime scene. Your supervisor wants you to write a report in which you explain the significance of the various types of evidence as it relates to the investigation of the crime. Write a 350-word summary of the evidence collected and its use in forensic toxicology. Copyright 2019 by University of Phoenix. All rights reserved. ...
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CJS/215 v4

Introduction to Forensics
Crime Scene: Biological Evidence
Part 1: Find, Identify, and Preserve
One of the aspects of forensic science that can help solve crimes for years is biological evidence.
Consider a crime scene that your team might have been called to this week. The supervisor of your crime
scene unit wants to see what you have learned. For Part 1, identify at least 5 different types of biological
evidence and explain how to collect and preserve it.
Biological Evidence

Collection Method

Preservation Method

Hair

Disposable latex gloves and
tweezers are used

Sealed envelope in a room with
well-maintained temperature

Blood

Latex gloves and tape lifting is
done, or the portion with the
stains is cut off.

Blood drops are used, after
which they are dried and in a
paper container

Semen

A rape kit is commonly used,
especially when deriving the
sample from a victim

Either frozen or dried then
placed in a sealed envelope

Vaginal secretions

Rape kits are widely used

Often dried and stored in swabs

Broken fingernails

Disposable latex gloves and...

Spartacus (13024)
UC Berkeley

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