CRMJ 375 Lecture 1: Chapter 1

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Friday, February 3, 2017
CRMJ 375 - 002
Chapter 1:
-Evidence in the Unabomber Investigation:
Use and reference to wood
Engraved letters, “FC”
Composite sketch based off of eyewitness investigation
Social Security Number
“Call Nathan R” note
Manifesto
Identification of Ted by his brother, David
-Definitions:
Criminal Investigation - the process of collecting crime-related information to reach
certain goals
-Process = activities performed
Activities performed by patrol officers, detectives, or other investigators
Nature and seriousness of the crime determines the activities to be performed
Common activities include:
-Searching for victims and witnesses
-Interviewing for victims and witnesses
-Reading and writing reports
-Evidence = crime-related information
-Goals = desired ends
Criminal Evidence - the facts and knowledge the are used to establish whether a
crime was committed and who committed it
-Some requires scientific analysis
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Friday, February 3, 2017
Forensic Science - refers to the field of science that addresses legal questions
-Goals of the Criminal Investigation Process:
To solve a crime (need a motive)
-Has a crime been committed?
-Has the perpetrator been identified?
-Has the perpetrator been apprehended?
To provide evidence in support of a conviction in court
Provide a level of service to satisfy victims of crime
Reduction in crime through deterrence or incapacitation
-Problems with Evidence in Criminal Investigations:
Relevance
Potential to have too much evidence
Accuracy
-Different types of Criminal Investigations:
Reactive - the crime occurs and then the police respond
-Someone calls body, body is found, investigation begins
Proactive - police initiating investigative activities prior to the crime’s occurrence
-Most common is drug enforcement
-Having an initiative
-Different stages of the Reactive Criminal Investigation Process:
The discovery of the crime and then the police respond
Initial investigation
Follow-up investigation
-Case is screened for based on its solvability factors
Te seriousness of the crime
The evidence available as document in the initial investigation report
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