Entry
Reader's guide
Entries A-Z
Subject index
Informants
The law enforcement investigative process is a search for relevant and material facts for use in criminal prosecutions, and one of the most effective means of obtaining such information is through the use of an informant. An informant is an individual who has access to information about a past, ongoing, and/or future potential crime; who is motivated to bring this information to the attention of the proper authorities; and who is under the direct control of law enforcement. Informants are either walk-ins or approached by law enforcement, and a thorough background check is done on each to determine his or her potential access to information, motivations, and ability to be controlled. Informants provide information about all types of criminal activity, ranging from petty crimes to crimes that even threaten national and international security. They are a valuable resource and tool for law enforcement because the information they provide would be otherwise unavailable through other investigative means.
Access to information varies from one informant to another. Informants may have either direct personal knowledge of a crime, indirect knowledge through personal association, or outside knowledge through indirect association. The more informants are trusted by their criminal associates, the more access to incriminating information they have, and consequently, the more valuable they are to law enforcement. Active informants are those who provide law enforcement with information while remaining on the inside; they have the most access to information and are consequently the most valued by law enforcement. Other types of informants are eyewitnesses, anonymous tipsters, unwitting informants, and jailhouse informants.
However, the law imposes some limitations and restrictions on whether and how an informant can be developed by law enforcement. Law enforcement must obtain permission before using an individual who is on probation/parole or who is a juvenile. Also, the use of a jailhouse informant presents its own set of unique limitations and restrictions on whether the incriminating information they provide about other inmates will be admissible at trial. Although the determination of admissibility varies on a case-by-case basis, the general rule based on the landmark decision in Massiah v. United States (1964) is that a jailhouse informant cannot coerce another inmate by making an affirmative act to question or elicit incriminating information, otherwise Fifth and Sixth Amendment rights, protection against self-incrimination and right to counsel, respectively, will have been deemed to be violated.
Although informants are a valuable resource and tool for law enforcement, there is a negative connotation associated with them, reflected in commonly used terms such as “fink,” “rat,” “snitch,” or “stool pigeon.” This negative connotation stems from the fact that informants commit the ultimate betrayal of confidences when they provide incriminating information to law enforcement about their criminal associates. Law enforcement uses less disparaging terminology to name informants, such as “cooperating individual/witness,” or “confidential infor-mant/source.” Informants are observed with cautious suspicion at best, even in the eyes of the law, because often they may have ulterior motives for providing misleading or even false information to law enforcement in their attempt to milk the system from both ends. The most common informant ulterior motives include the desire to protect themselves from being detected in ongoing criminal activity, to hide a previous lie, or to protect or falsely implicate another. Based on federal and state statutes, false statements made by informants can carry terms of imprisonment depending on the severity of the misrepresentation.
...
- Agencies/Associations/Organizations
- Academy of Criminal Justice Sciences
- Airborne Law Enforcement Association
- American Society of Criminology
- Burns Detective Agency
- Child Welfare
- Commission on the Accreditation of Law Enforcement Agencies
- Crime Stoppers
- Federal Law Enforcement Officers Association
- Fraternal Organizations
- Hispanic American Police Command Officers Association
- International Association of Campus Law Enforcement Administrators
- International Association of Chiefs of Police
- International Association of Women Police
- Mothers against Drunk Driving
- National Association of Women Law Enforcement Executives
- National Black Police Officers Association
- National Native American Law Enforcement Association
- National Organization of Black Law Enforcement Executives
- National Rifle Association
- National Sheriffs' Association
- Police Executive Research Forum
- Police Foundation
- U.S. Police Canine Association, Inc.
- Civilian/Private Involvement
- Communications
- Crime Statistics
- Culture/Media
- Drug Enforcement
- Asset Forfeiture, State
- Comprehensive Drug Abuse Prevention and Control Act
- Drug Enforcement Administration
- Drug Enforcement in the United States
- Drug Policy and Legislation
- Drug Prevention Education
- Drug Testing of Employees
- Drug Testing of Police
- Drug Trafficking
- Federal Drug Seizure System
- Food and Drug Administration
- Harrison Act
- Marijuana Tax Act
- Narcotics Control Act
- Office of National Drug Control Policy
- Pure Food, Drink, and Drug Act
- Federal Agencies/Organizations
- Bureau of Engraving and Printing Police
- Bureau of Engraving and Printing Police
- Bureau of Immigration and Customs Enforcement
- Bureau of Industry and Security
- Bureau of Land Management Law Enforcement
- Bureau of Reclamation, Office of Security, Safety, and Law Enforcement
- Critical Incident Response Group
- Department of Health and Human Services
- Department of Homeland Security
- Department of Justice
- Diplomatic Security Service
- Drug Enforcement Administration
- Federal Air Marshal Program
- Federal Aviation Administration
- Federal Bureau of Investigation
- Federal Law Enforcement Training Center
- Federal Protective Service
- Financial Crimes Enforcement Network
- Fish and Wildlife Service, Division of Law Enforcement
- Forest Service, Law Enforcement and Investigations
- Inspectors General
- Inspectors General, Offices of
- Internet Fraud Complaint Center
- Law Enforcement Assistance Administration, Federal
- Law Enforcement Assistance Administration, State and Local
- Library of Congress Police
- National Crime Information Center
- National Highway Traffic Safety Administration
- National Institutes of Health, Department of Health and Human Services
- National Marine Fisheries Service, Department of Commerce
- National Public Safety Information Bureau
- National Security Agency
- National Transportation Safety Board
- National Zoological (Smithsonian) Park Protective Services
- Nuclear Security, Department of Energy
- Office of Security, Central Intelligence Agency
- Office of Surface Mining Reclamation and Enforcement
- Pentagon Police
- Secret Service
- Tennessee Valley Authority Police
- Transportation Security Administration
- U.S. Capitol Police
- U.S. Coast Guard
- U.S. Customs Service
- U.S. Marshals Service
- U.S. Postal Inspection Service
- International Law Enfrocement
- Community Policing, International
- Community Policing: A Caribbean Case Study
- EUROPOL
- History of Police
- International Criminal Justice Mechanisms
- International Police Association
- International Police Cooperation
- INTERPOL
- Police and Peacekeeping in the United Nations
- Police and Terrorism
- Police Corruption
- Police Corruption: Combating Strategies
- Police Structure: Centralized/Decentralized
- Police Training: A Comparative Perspective
- Private Security Industry Growth in Western Countries
- Suicide by Cop: International Perspective (Police-Involved, Victim-Provoked Shooting)
- United Nations and Criminal Justice Policy
- Women in Policing
- Investigation Techniques
- American Society of Crime Laboratory Directors
- Ballistics
- Ballistics Recognition and Identification Systems
- Combined DNA Index System
- Coroner and Medical Examiner Systems
- Crime Laboratories
- Crime Laboratory Accreditation
- Crime Mapping
- Crime Scene Investigation
- Detectives
- DNA
- DNA Testing
- Document Examiners
- Encryption
- Evidence
- Fingerprints
- Forensic Accounting
- Forensic Art
- Forensic Science
- Geographic Information System
- Information Technologies
- Interrogation
- Investigative Techniques
- Lie Detection
- Profiling, Criminal Personality
- Profiling, Drug Courier
- Profiling, Geographic
- Task Forces
- Undercover Operations, Federal
- Undercover Operations, State and Local
- Investigation, Types of
- AMBER Alert
- Arson Investigation
- Art Theft Investigation
- Child Abduction Investigations
- Child Molestation
- Child Pornography
- Cold Case Investigations
- Computer Crime
- Crime Scene Investigation
- Domestic Violence Enforcement
- Drunk Driving Enforcement
- Gangs Investigation
- Homicide Investigation
- Identity Theft and Identity Crimes
- Missing Persons Investigations
- Office of Security, Central Intelligence Agency
- Organized Crime Control
- Serial Murder Investigation
- Sex Crime Investigation
- Vidocq Society
- Investigative Commissions
- Christopher Commission, The
- Crown Heights Report
- Knapp Commission, The
- McCone Commission, The
- Mollen Commission, The
- National Advisory Commission on Civil Disorder (Kerner Commission)
- National Commission on Law Observance and Enforcement (Wickersham Commission)
- President's Commission on Law Enforcement and the Administration of Justice
- Rampart Investigation, The
- Law and Justice
- Legislation/Legal Issues
- Antiterrorism and Effective Death Penalty Act
- Brady Handgun Violence Prevention Act
- Campus Safety and Security Acts
- Children's Online Privacy Protection Act
- Church Arson Prevention Act
- Comprehensive Drug Abuse Prevention and Control Act
- Consent Decrees
- Freedom of Information Act
- Fugitive Felon Act
- Gun Control
- Gun Control Act
- Harrison Act
- Hate Crimes
- Hate Crimes Statistics Act
- Hate Crimes, Law Enforcement Response to
- Immigrants (Policy Toward)
- Mann Act
- Marijuana Tax Act
- Motor Vehicle Theft Act
- Narcotics Control Act
- Omnibus Crime Control and Safe Streets Act
- Posse Comitatus Act
- Privacy Act
- Prohibition Law Enforcement
- Pure Food, Drink, and Drug Act
- Racketeer Influenced and Corrupt Organizations Act
- Sexual Offender Civil Commitment
- USA PATRIOT Act
- Violence against Women Act
- Violent Crime Control and Law Enforcement Act (1994)
- Volstead Act
- Military
- Intelligence and Security Command, Department of the Army, Department of Defense
- Militarization of American Police
- Military Police, Department of the Army, Department of Defense
- Military Policing
- National Guard
- Naval Criminal Investigative Service
- U.S. Air Force Office of Special Investigations
- U.S. Air Force Security Forces
- U.S. Criminal Investigation Command, Department of the Army, Department of Defense
- Minority Issues
- Affirmative Action in Policing
- Cultural Competency Training/Sensitivity Training
- Depolicing
- Gays in Policing
- Hate Crimes
- Hate Crimes, Law Enforcement Response to
- Immigrants (Policy Toward)
- International Association of Women Police
- National Association of Women Law Enforcement Executives
- National Native American Law Enforcement Association
- National Organization of Black Law Enforcement Executives
- Profiling, Racial
- Race Relations
- Tribal Policing
- Women in Federal Agency Law Enforcement
- Women in Federal Law Enforcement
- Women in Policing, State and Local
- Personnel Issues
- Affirmative Action in Policing
- Assaults on the Police
- Body Armor
- Cultural Competency Training/Sensitivity Training
- Drug Testing of Employees
- Drug Testing of Police
- Early Warning Systems
- Education of Police
- Evaluation of Officers
- Fraternal Organizations
- Hiring Standards for Police
- Morale
- Patrol Shifts
- Patrol Work
- Physical Fitness and Training
- Police Corps
- Police Discretion
- Police Management
- Police Officers' Bill of Rights
- Police Residency Requirements
- Police Shootings
- Police Strikes/“Blue Flu”
- Police Training in the United States
- Psychologists/Psychological Services
- Quotas (Tickets, Arrests)
- Rank Structure
- Stress
- Unions
- Police Conduct
- Accountability
- Assaults on the Police
- Civil Liability
- Civil Rights Violations by Police
- Civilian Complaint Review Boards
- Complaints against Police
- Consent Decrees
- Corruption/Integrity
- Early Warning Systems
- Ethics
- Evaluation of Officers
- Internal Affairs
- Police Brutality
- Police Code of Silence
- Police Discretion
- Police Misconduct
- Police Shootings
- Suicide by Cop
- Use of Force
- Whistle-Blowing
- Police Procedures
- Arrest
- Canine (K-9) Units
- Chain of Custody
- Confessions
- Duty Belt
- Electronic Surveillance, Federal
- Electronic Surveillance, State and Local
- Exclusionary Rule
- Eyewitnesses
- Hostage Negotiations
- Informants
- Interrogation
- Lie Detection
- Lineups
- Miranda Warnings
- Nonlethal Weapons
- Plain View Doctrine
- Police Discretion
- Police Pursuits
- Probable Cause
- Search and Seizure
- Search Warrants
- Stop and Frisk
- SWAT Teams
- Undercover Operations, Federal
- Undercover Operations, State and Local
- Use of Force
- Vehicle Searches
- Video in Patrol Cars
- Weapons
- Policing Strategies
- Safety and Security
- Airport Security
- Auxiliary/Reserve/Part-Time Police
- Burns Detective Agency
- Campus Policing
- Emergency Services Units
- National Domestic Preparedness Office
- National Guard
- Peace Officers
- Pinkerton National Detective Agency
- Private Policing
- School Crime/Security/Response
- Special Jurisdiction Law Enforcement Agencies
- Wackenhut Corporation
- Specialized Law Enforcement Agencies
- Tactics
- Arrest
- Bombs and Bomb Squads
- Canine (K-9) Units
- Counterterrorism
- Crime Mapping
- Crime Prevention Units
- Crisis Intervention
- Duty Belt
- Emergency Services Units
- Geographic Information System
- Hostage Negotiations
- Juvenile Crimes/Programs/Units
- Mentally Ill, Police Response to the
- Militarization of American Police
- Misdemeanors
- Nonlethal Weapons
- Police Mediation
- Radar
- Riots/Demonstrations (Response to)
- Special Victims Units
- Stop and Frisk
- SWAT Teams
- Task Forces
- Traffic Enforcement
- Truancy
- Use of Force
- Vehicle Searches
- Weapons
- Terrorism
- Victims/Witnesses
- Loading...
Get a 30 day FREE TRIAL
-
Watch videos from a variety of sources bringing classroom topics to life
-
Read modern, diverse business cases
-
Explore hundreds of books and reference titles
Sage Recommends
We found other relevant content for you on other Sage platforms.
Have you created a personal profile? Login or create a profile so that you can save clips, playlists and searches