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A criminal justice system is a set of legal and social institutions for enforcing the criminal law in accordance with a defined set of procedural rules and limitations.
Criminal justice is a social science that attempts to identify and explain the patterns ofcriminal behavior and to analyze society's ability to control crime and delinquency.
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The criminal justice system is the set of agencies and processes established by governments to control crime and impose penalties on those who violate laws. There is no single criminal justice system in the United States but rather many similar, individual systems. How the criminal justice system works in each area depends on the jurisdiction that is in charge: city, county, state, federal or tribal government or military installation. Different jurisdictions have different laws, agencies, and ways of managing criminal justice processes.1 The main systems are:
Most criminal justice systems have five components-law enforcement, prosecution, defense attorneys, courts, and corrections, each playing a key role in the criminal justice process.
Below is a basic outline of the sequence of events in the criminal justice process, beginning when the crime is reported or observed. The process may vary according to the jurisdiction, the seriousness of the crime (felony or misdemeanor),3 whether the accused is a juvenile or an adult, and other factors. Not every case will include all these steps, and not all cases directly follow this sequence. Many crimes are never prosecuted because they are not reported, because no suspects can be identified, or because the available evidence is not adequate for the prosecutor to build a case.
The criminal justice system can be overwhelming, intimidating, and confusing for anyone who does not work within it every day. As a victim, you will need to know what to expect and have support throughout the process.
You will also want to know your rights and the choices you may have to make.4 You may also need information and guidance to help you stay safe. For example, if you are harassed or stalked by the offender at any point in the criminal justice process, you should immediately report these violations to the police and inform the prosecutor. Also, while the offender is in jail or prison, the corrections staff is generally required to notify you if the offender is released or escapes or if a parole hearing is pending, if you request such notification. Also, most states have automated notification systems that allow registered victims (those who sign up) to check on the status of an offender at any time. Such systems will automatically notify you of an inmate's escape or release. (See www.vinelink.com/vinelink/initMap.do for more information about state notification systems.)
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Criminology is the study of crime, and its causes, costs and consequences,
Whereas
Criminal justice is the system in which crimes and criminals are detected, detained, tried and punished.
The system of law enforcement, the bar, the judiciary, corrections, and probation that is directly involved in the apprehension, prosecution, defense, sentencing, incarceration, and supervision of those suspected of or charged withcriminal offenses.
http://en.wikipedia.org/wiki/Criminal_justice
Criminal justice is the system of practices and institutions of governments directed at upholding social control,deterring and mitigating crime, or sanctioning those who violate laws with criminal penalties and rehabilitation efforts. Those accused of crime have protections against abuse of investigatory and prosecution powers.
the system of law enforcement, involving police, lawyers, courts, and corrections, used for all stages of criminal proceedings and punishment.