All my legal notes are handwritten, but legal controls on state power are basically those avenues through which people can protect their rights and challenge the decisions made by politicians and the bureaucracy.
Legal controls on state power are in the form of/can be administered by:
- Royal commissions
- Judicial inquiries
- Internal and external (merit) review
- Ombudsman (e.g. telecommunications ombudsman, who looks into complaints regarding the approx. 50% government-owned telstra)
- Independent Comission Against Corruption (ICAC)
- Media
- Trade Unions/Interest Groups
- Non-Government organisations (NGOs)
- High Court (interprets the constitution when necessary)
It'd also help to learn about discretionary powers.
That's all off the top of my head, I'm sure there are more. Do a search on google on each of those and you should have a pretty good idea of legal controls on state power.
EDIT: Got up off my lazy ass and found some more controls on state power.