History of Law Enforcement: Lecture Notes – CJA 204

Shared by SteadyAtlas9417 November 2, 2026 PDF
Criminal Justice History Law Enforcement CJA 204 5 pages $5
Page 1 shows the heading 'CJA 204 History of Law Enforcement' and starts with the invasion of England in 1066.
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About this document

Pages
5 pages
Price
$5 one-time, yours to keep
Membership
Included in every plan
Format
PDF
Subject
Criminal Justice, History, Law Enforcement
Module
CJA 204

This document covers the history of law enforcement from 1066 to modern times, including the creation of the first metropolitan police departments in London and Boston, and the establishment of various federal law enforcement agencies in the United States. It is useful for students studying the history and development of law enforcement. It covers module CJA 204.

What's inside

  • Early law enforcement in England
  • Creation of the first metropolitan police departments
  • Development of law enforcement in the United States
  • Federal law enforcement agencies
  • The Department of Homeland Security

Who it is for: Students taking a course on the history of law enforcement, especially module CJA 204. (Undergraduate)

#cja 204 #department of homeland security #federal agencies #history of law enforcement #metropolitan police #police history

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Summary

Law enforcement has changed over time. Students learn about its history in England and the United States.

Early English Law Enforcement

The history of law enforcement starts with the Norman invasion of England. William the Conqueror and his son Henry I set up early policing systems. They divided England into areas with officers to keep the peace.

Modern Police Departments

The first metropolitan police departments were created in the 19th century. London got one in 1829. Boston followed in 1838. Many cities had night watchers and volunteers before then.

State and Federal Agencies

State police agencies began in the 20th century. The Texas Rangers were the first. Federal agencies have jurisdiction nationwide. They include the U.S. Marshals Service, the FBI, the Secret Service, the DEA and the Department of Homeland Security.

Differences Between State Agencies

State agencies include highway patrolmen, state troopers, and state police. Their roles and responsibilities vary by state. Highway patrolmen often handle traffic violations. State troopers and state police have broader responsibilities.

Key terms

Marshal Law
A system of policing where security is more important than freedom.
Leges Henrici
Laws issued by Henry I that divided England into judicial districts.
Metropolitan Police Department
A police department that has jurisdiction over an entire city.
State Police
Any agency employed by the state with jurisdiction over the entire state.
Federal Law Enforcement Agencies
Agencies that have jurisdiction over the entire nation and U.S. Territories.
Department of Homeland Security
A department created to protect the United States and its territories from terrorist attacks and other emergencies.

Questions this document helps with

  • When did modern police departments begin?
  • What are the main federal law enforcement agencies?
  • How did law enforcement start in England?

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