Australian Criminal Law - Common Law and Code Jurisdictions

Common Law and Code Jurisdictions

Australian criminal law was originally received from the English common law, which continued to evolve in Australian courts. Although all states also have some legislation on the criminal law, in some states criminal law has been codified whereas in other the bulk of the law is based on the common law. These may be referred to as 'common law jurisdictions' and 'code jurisdictions'.

New South Wales, South Australia and Victoria are common law jurisdictions. These states have Crimes Acts which list the most common offences and fix their penalties, but do not always exhaustively define the elements of the offence, e.g., Crimes Act 1900 (NSW). It is settled law in the common law jurisdictions that only Parliaments, not the courts, can create new offences.

The "code jurisdictions" are the Commonwealth, the Australian Capital Territory, the Northern Territory, Queensland, Tasmania, and Western Australia. In these jurisdictions a statutory code has been introduced to be a comprehensive statement of criminal law, and are interpreted to replace the common law except in cases of ambiguity. Codification in some cases involved a simple enactment of the common law into a statutory instrument. In other cases the changes were greater as the code was based on legislative instruments from other jurisdictions.

Legislation (including the criminal codes) is further refined by the method of judicial precedent and interpretation.

In addition to explicitly titled criminal code legislation there exists in most jurisdictions a further body of legislative or case precedent, the breach of whose conditions may result in criminal proceedings, e.g., Summary Offences Act 1966 (Vic)