Criminal Investigation: Then & Now

Introduction to Criminal Investigation

  • Criminal investigation has evolved from early practices in Europe to modern methods in the U.S.

  • Influenced by societal changes, technology, and crime complexity.

Historical Roots

  • Early organized criminal investigation in London through Magistrate Henry Fielding and the Bow Street Runners (18th century).

  • The Bow Street Runners: Early thief-takers conducting investigations; compensated privately.

  • Eventually replaced by the London Metropolitan Police Department (formal and government-backed).

  • In the U.S.:

    • Texas Rangers formed in the 1830s, early state law enforcement agency.

    • Federal agencies like the U.S. Secret Service expanded roles post-Civil War.

The Federal Bureau of Investigation (FBI)

  • Established in 1908; gained prominence under J. Edgar Hoover (1924).

  • Aims: Protect against terrorism, espionage, cybercrime, and corruption.

Goals of Criminal Investigation

  • Determine if a crime has occurred, identify the perpetrator, gather evidence for conviction.

  • Challenges:

    1. Late or unreported crimes by citizens.

    2. The "Dark Figure of Crime": Unreported crimes complicating criminal activity assessment.

Types of Criminal Investigations

  1. Persons Crimes: Offenses directly harming individuals (e.g., assault, homicide).

  2. Property Crimes: Theft or destruction of property (e.g., burglary, vandalism).

  3. Vice Crimes: Societal moral violations (e.g., drug use, prostitution).

  4. Major Case Squad: Handles complex, high-profile cases.

Stages of Criminal Investigation

  1. Preliminary Investigation: Initial inquiry by patrol officers to gather basic info and secure evidence.

    • Key tasks involve Locard’s Exchange Principle.

  2. Follow-up Investigation: Perform detailed evidence collection and analysis led by detectives.

Organizing the Investigative Unit

  • Small Agencies: Rely on patrol officers; seek larger agency assistance for complex cases.

  • Large Agencies: Possess specialized units (e.g., homicide, narcotics).

  • Task Forces: Collaboration across agencies to handle multijurisdictional crimes.

    • Examples:

    • Violent Criminal Apprehension Program (ViCAP)

    • Joint Terrorism Task Force (JTTF)

    • Santa Barbara Human Trafficking Task Force

Conclusion

  • Criminal investigation encompasses historical practices, agency roles, investigation stages, and task force benefits, emphasizing the complexity of crime-solving and justice delivery.