Criminal Justice | Learning Resources | Section 4.4

Criminal Justice: An Overview of the System by Adam J. McKee

Section 4.4: Investigations and Specialized Units

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Learning Resources

Learning Objectives
4.4(a) Describe the basic duties of criminal investigators.
4.4(b) Describe the investigative functions of patrol officers.
4.4(c) Describe factors that influence the likelihood that a department will have specialized units.
4.4(d) Identify the scope and nature of the problems with which domestic violence units must contend.
4.4(e) Identify the types of crimes most commonly investigated by vice units.
4.4(f) Describe the role of internal affairs within police departments.
4.4(g) Describe specialized units and programs within police departments designed to prevent juvenile delinquency.

Slide Presentations

For the Classroom:  INTRO-Section-4-4-presentation

For Printing: INTRO-Section-4-4-print

Present from the web:

Key Terms

  • Active Shooter
  • Child Abuse
  • Child Neglect
  • Clearance Rate
  • Confidential Informant
  • Crime Scene Investigation (CSI)
  • Domestic Violence
  • Drug Awareness Resistance Education (D.A.R.E.)
  • Drug Enforcement Unit
  • Informant
  • Internal Affairs
  • Juvenile Curfew
  • Mafia
  • Scene Integrity
  • School Resource Officer (SRO)
  • Specialized Units
  • Traffic Unit
  • Vice

Download a Printable Vocabulary Study Guide [PDF]: Intro_Section_4.4

In your more advanced courses and in your future career, your understanding of many technical and legal terms will be taken for granted.  It is vital that you take the time to really understand the terms presented at the end of each section of this course.  We’ve gone to great lengths to provide you with assistance in mastering this vocabulary.  Don’t forget that there is an extensive glossary that defines all of the bold terms that you will encounter in your reading.  In addition, the vocabulary for each section has been made available on a very useful website called  This site has a wide selection of flashcards for you to study, memorize, test yourself on, and more.  Cram also has a large app store so you can find other mobile flashcards for your Android, iPhone, or Windows device, allowing you to take your flashcards on the go. There are even games that add some fun to learning important terms.

Study Flashcards for this vocabulary on

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Last Updated:  04/21/2021

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