If you have a case citation, you can use online databases or print report series to find the text of the case. Use the database's for guidance.
Unreported judgments are handed down by the court. Some may subsequently appear in a report series if they are thought to be significant. Unreported judgments can be found using this medium neutral citation:
McLeod v The State of Western Australia  WASC 48
1 2 3 4
1. These are the names of the principal parties: McLeod (the plaintiff) and the State of Western Australia (the defendant). These are the elements of the Case Name.
2. This is the year of the decision - note the square brackets
4. This is the abbreviation of the court: WASC is the Supreme Court of Western Australia
5. This is the case number: 48. This is the 48th case in the WA Supreme Court in 2015.
Before searching databases, start with secondary sources such as textbooks, case citators, encyclopaedias and commentary to find the names of major cases on a topic.