The doctrine of natural justice implies a duty for the arbiter to observe one (or both) of the following rules:
1. The hearing rule: The decision-maker must afford an opportunity to be heard, to a person who will be adversely affected by a decision. (The arbiter must hear your side of the story.)
2. The rule against bias: The decision-maker must be disinterested or unbiased in the matter to be decided. (For example, arbiters must not make a decision that affects themselves or members of their family as well as you, or they should let someone else make the decision if they don't like you.)
Put in its simplest form, the requirement to observe the rules of natural justice can be described as the requirement to be "fair".
Exclusion from principles of natural justice. Because this is a common law concept, it can be overturned by statute. The courts originally said that if the legislature wanted to exclude the principles of natural justice then it must, in the law, do so expressly and plainly so that the intention was clear.
okay next question:
How effective are legal measures, domestically and internationally, in addressing human rights issues?