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Police code. A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or ...
Criminology. Crime statistics refer to systematic, quantitative results about crime, as opposed to crime news or anecdotes. Notably, crime statistics can be the result of two rather different processes: official figures, such as published by the police, prosecution, courts, and prisons. However, in their research, criminologists often draw on ...
The Uniform Crime Reporting (UCR) program compiles official data on crime in the United States, published by the Federal Bureau of Investigation (FBI). UCR is "a nationwide, cooperative statistical effort of nearly 18,000 city, university and college, county, state, tribal, and federal law enforcement agencies voluntarily reporting data on crimes brought to their attention".
Clearance rate. In criminal justice, clearance rate is calculated by dividing the number of crimes that are "cleared" (a charge being laid) by the total number of crimes recorded. Various groups use clearance rates as a measure of crimes solved by the police. Clearance rates can be problematic for measuring the performance of police services ...
e. A murder–suicide is an act where an individual intentionally kills one or more people before killing themselves. The combination of murder and suicide can take various forms: Suicide after or during murder inflicted on others. Murder that entails suicide, such as suicide bombing or the deliberate crash of a vehicle carrying the perpetrator ...
Police misconduct is inappropriate conduct and illegal actions taken by police officers in connection with their official duties. Types of misconduct include among others: sexual offences, coerced false confession, intimidation, false arrest, false imprisonment, falsification of evidence, spoliation of evidence, police perjury, witness tampering, police brutality, police corruption, racial ...
The blue wall of silence, [ 1] also blue code[ 2] and blue shield, [ 3] are terms used to denote the informal code of silence among police officers in the United States not to report on a colleague 's errors, misconducts, or crimes, especially as related to police brutality in the United States. [ 4] If questioned about an incident of alleged ...
The National Crime Information Center ( NCIC) is the United States' central database for tracking crime-related information. The NCIC has been an information sharing tool since 1967. [ 1] It is maintained by the Criminal Justice Information Services Division (CJIS) of the Federal Bureau of Investigation (FBI) and is interlinked with federal ...