2. English Roots
Much of early American policing was based on the British model. English law enforcement started around 1200.
At that time:
All able-bodied men responded to cries for help by joining together in a posse to search for the suspect.
Posses were either led by the shire reeve (county leader) or one of the few the comites stabuli (mounted officers).

3. English Roots Guilt of suspect was usually assumed.
In English towns and cities, law enforcement initially relied on watchman, who performed night watch.
They would watch for fires and thieves and rouse up people when something was spotted.

4. English Roots
The Statute of Winchester codified modern police practices. The statute established a:
Watch and ward system
Draft of men to serve as watchmen
Formal hue and cry system in which citizens who did not respond to cries for help could be punished
Mandate that all homes contain a weapon, for use in responding to cries

5. English Roots
The emergence of gin is said to have fueled the creation of a formal law enforcement.
Gin was potent, inexpensive, and readily available.
Binge drinking, rioting, and crime became a problem.
The British government needed to come up with a better system of policing, as people could no longer be counted on to perform watch duties.

6. Bow Street Runners
In 1750, Sir Henry Fielding became magistrate of London’s Bow Street region.
He attracted a number of dedicated men to serve as officers, patrolling streets and highways leading to London.
They became known as the Bow Street Runners.

7. The New Police: London Metropolitan Police
In 1829, Sir Robert Peel established what is now considered the world's first modern police force.
1,000 officers called bobbies made up this force of new police, which:
was uniformed
was structured along military lines
became a model for police forces worldwide

8. The Early American Experience
Early American law enforcement was based on England’s experience yet unique to the reality of colonialism and expansionism.
Police were decentralized and dispersed from the start.

9. The Frontier The frontier was home to many outlaws.
Frontier lands lacked established police forces, so many settlers took to vigilantism.

10. The Early Cities
Larger cities had small-scale, organized police forces early on.
Many were keeping a close eye on the performance of the Metropolitan Police of London.
1844 – New York City Police Department
1855 – Boston Police Department

11. The 20th Century
The 20th Century saw great social change and law enforcement reform.
1902—International Association of Chiefs of Police formed.
1910—The first policewoman hired (in Los Angeles).
1915—Fraternal Order of Police (FOP) established.
1915—25 cities employed policewomen
Inventions like the telephone, automobiles, and radios impacted police…

12. The 20th Century
Inventions, like the telephone, automobiles, and radios impacted police
Call-box system of telephones
Bureau of Investigation, later became the FBI

13. Prohibition and Police Corruption
During Prohibition:
There was a lot of crime in support of the sale of “bootlegged” liquor.
Corruption flourished as some police officers were accepting “payoffs” to look away.
The Wickersham Commission eventually recognized that Prohibition was unenforceable and contributed to corruption.

14. The Last Half of the 20th Century
The 1960s and 1970s were a time of great cultural change. During this time:
The U.S. Supreme Court enumerated many individual rights for suspects.
Police operations were scrutinized.
The Law Enforcement Assistance Administration (LEAA) was formed.
The National Advisory Commission on Criminal
Justice Standards and Goals issued strategies for improving law enforcement.

15. Evidence-Based Policing
The LEAA dedicated a lot of money to preventing and reducing crime.
The LEAA spent $8 billion.
The LEAA was abolished in 1982 The LEAA started a tradition of scientific police management—applying social science techniques to the study of police administrating in order to:
Increase effectiveness
Reduce citizen complaints
Enhance efficiency

16. The Kansas City Experiment
The Kansas City Experiment tested the use of preventive patrol on crime rates and citizens’ fear of crime. The experiment revealed that:
Crime rates were not impacted by preventive patrol.
Preventive patrol does not impact fear of crime.
Directed patrol is a better way to productively use patrol officers.

17. Evidence-Based Policing Today
Uses research into everyday police procedures to evaluate current practices and to guide officers and police executives in future decision making.
Has been called the single “most powerful force for change” in policing today

18. Selected Scientific Studies in Law Enforcement

19. Selected Scientific Studies in Law Enforcement

20. American Policing Today
American law enforcement is very complex.
There are thousands of different agencies involved in law enforcement, with not a lot of uniformity among them.
Three major legislative and judicial jurisdictions exist:
Federal
State
Local
Supplementing these are thousands of private security companies.

21. Federal Agencies
Federal law enforcement agencies are distributed among 14 U.S. government departments and 28 non-departmental entities.
Additionally, many other government officers are involved in enforcement of laws through inspection, regulation, and control activities.

22. American Policing: Federal Law Enforcement Agencies

23. Federal Bureau of Investigation (FBI)
The FBI may be the world’s most famous law enforcement agency.
It was developed in 1908 and called the Bureau of Investigation. It was designed originally to help the federal government investigate political and business corruption.

24. The Mission of the Federal Bureau of Investigation (FBI)
“The mission of the FBI is to protect and defend the United States against terrorists and foreign intelligence threats, to uphold and enforce the criminal laws of the United States, and to provide leadership and criminal justice services to federal, state, municipal, and international agencies and partners.”

25. Federal Bureau of Investigation (FBI)
The FBI is headquartered in Washington, D.C. and has 56 field offices and 400 satellite offices. The FBI also operates:
“Legal attaché” offices in other nations, to help coordinate international law enforcement efforts and information sharing
The National Computer Crime Squad (NCCS)
The Combined DNA Index System (CODIS)
A Criminal Justice Information Services Division
A full-scale crime laboratory
A National Academy Program

26. The FBI and Counterterrorism
The focus of the FBI changed as a result of the September 11th terrorist attacks, centering now on counterterrorism efforts.
The FBI maintains:
A Counterterrorism Division
A national threat warning system
Flying Squads
The Joint Terrorism Task Force (JTTF)

27. Recent FBI Focus
In 2009, mortgage and financial fraud investigations consumed significant investigative effort.
Property flipping analytical computer application

28. State-Level Agencies
Most state police agencies were created in the late nineteenth or early twentieth century.
The Texas Rangers were the first.
Today, there is a lot of diversity among the different state police agencies.

29. Models of State Police Agencies
Centralized
Combine criminal investigations duties and state highway patrol
Assist local departments
Operate identification bureaus
Maintain a criminal records repository
Patrol highways
Provide training for local officers
Decentralized
Separates state highway patrol from other duties
Other duties performed by adjunct state-level law enforcement agencies

30. Local Agencies
Local agencies encompass a wide variety of agencies, including:
Municipal departments
Sheriffs departments
Specialized groups, like campus police and transit police

31. Municipal Police Departments
Municipal police departments are city- or town-based.
Any municipality can create its own police department; not every one does.
The majority have fewer than ten full-time officers.
Many utilize part-time officers.
Some contract with private security firms

32. Sheriffs Departments
Sheriffs departments are responsible for law enforcement throughout their counties.
Mostly patrol the unincorporated areas that lie between municipalities
Jurisdiction is throughout the entire county
Operate county jails
Serve court papers
Maintain security in state courtrooms
Most departments have fewer than twenty-five full-time officers

33. Private Protective Services
Constitute the fourth level of enforcement activity in the U. S. today
These organizations:
Are privately funded, for-profit agencies.
Provide a variety of security-related services to their clientele (which include governments).
Employ more people than public police.
Find support in ASIS International programming.

34. American Policing: Private Security Agencies

35. Growth of Private Protective Services
An increase in crimes in the workplace
An increase in fear of crime and terrorism
The fiscal crises of states
An increased public and business awareness and use of more cost-effective private security products and services

36. Integrating Public and Private Security
As the private security field grows, the relationship between public and private security is becoming more integrated with more of a cooperative crime-fighting potential.