The State Library has a number of electronic resources that are useful for searching legal topics, some these can only be accessed within the library, and some can be accessed from home by becoming a Home Access User. Some of those available include,
NLA offer remote access to a number of their eResources, for this access you will need to register with NLA
The State Library holds many hardcopy law journals and provides electronic access to many more, those listed here are a small selection...
The Adelaide Law Review [electronic journal] - available onsite and home access
Alternative Law Journal [electronic journal] - available onsite and home access
Australian Family Lawyer : the journal of the Family Law Section, Law Council of Australia [electronic journal] - available onsite and home access
E law : Murdoch University electronic journal of law [electronic journal] - available onsite and home access
The majority of cases appearing before the courts are never reported in a formal sense and due to this are not searchable. Copies of unreported judgements (that is, unpublished) should be sought from the registry of the court involved. Those cases that set some sort of legal precedent or are from the higher level courts may be reported as Law Reports, for example in documents like...
South Australian law reports - on microfiche 1865/66 - 1976, printed from 1979- 1994 and again from September 2000.
AustLII - Case law for all state of Australia
Newspaper articles are a useful source of information on violent or notorious crime. Many local and interstate newspapers are held at the State Library.