The criminal justice system consists of the state/territory and Commonwealth institutions, agencies, departments and personnel responsible for dealing with the justice aspects of crime, victims of crime, persons accused or convicted of committing a crime, and related issues and processes.
Each state and territory has laws and police, courts and corrections systems, while the federal criminal justice system deals with offences against Commonwealth laws. Criminal law is administered principally through the federal, state and territory police, the courts and state and territory corrective or penal services. There is no independent federal corrective service, and the relevant state or territory agencies provide corrective services for federal offenders.
The states and territories have independent legislative powers in relation to all matters that are not otherwise specifically vested in the Commonwealth of Australia, and it is the statute law and the common law of the states and territories that primarily govern the day-to-day lives of most Australians.
The eight states and territories have powers to enact their own criminal laws, while the Commonwealth has powers to enact laws, including sanctions for criminal offences, in relation to its responsibilities under the Constitution. Thus, in effect, there are nine different systems of criminal law in Australia. The existence of cooperative arrangements between the various states and territories and the Commonwealth, such as those relating to extradition or the creation of joint police services, helps address issues which have arisen out of the separate development of the various systems of criminal law.
The various agencies that comprise the criminal justice system act within a broader process in which criminal offenders interact with police, courts and corrective services. Diagram 11.1 illustrates the possible stages involved in the processing of cases and shows some of the links between these three elements of the judicial system.
The police, as well as agencies such as Australian Customs Service (ACS), are responsible for the prevention, detection and investigation of crimes. Where alleged offenders are detected by police, they can be proceeded against either through the use of a non-court process (such as a caution, fine or diversionary conferencing) or charges may be laid before a criminal court. The court, including judicial officers, a jury (in the higher courts), the prosecution and the defence, determines the guilt or innocence of the defendant.
Following the hearing of the charges, in cases where a finding of guilt is made by the court, sentences may be imposed. These may include imprisonment, community service orders of various kinds, fines or bonds. A number of jurisdictions have also introduced penalties such as home detention or work outreach camps which are administered by correctional agencies. Fines and bonds are the most common penalties handed down by the courts.
11.1 FLOWS THE CRIMINAL JUSTICE SYSTEM