Law Reform texts are shelved at 340.3.
Subject terms in the catalogue include: Law Reform; Reform Commission.
Include the specific subject with the words law reform or reform for titles on law reform in that subject.
e.g medical law reform electoral law reform
Some texts include:
Indigenous Australians, social justice and legal reform
New directions for law in Australia : essays in contemporary law reform
Rules for a flat world: why humans invented law and how to reinvent it for a complex global economy
List some commentaries here
Tip: combine "law reform" with a subject for chapters on law reform in that subject.