Can you provide examples of each ground for Judicial Review?

Of course. A non-exhaustive list of examples for each:

(i) Illegality includes:

a. The decision was not one the maker had the power to reach;

b. Misinterpretation or misapplication of the law;

c. Unlawful delegation of powers; or

d. Failure to follow policies or guidelines.

(ii) Procedurally Unfair includes:

a. The decision was reached as a result of bias;

b. Breach of natural justice; or

c. Failure to disclose charge or evidence pertaining to it.

(iii) Irrational decision making includes:

a. Decision was so unreasonable that no other reasonable decision maker properly directed could come to it;

b. Oppressive Decisions; or

c. Disproportionate decisions.

(iv) Breach of Convention rights:

a. It is unlawful for a public body to act in a way that is incompatible with a convention right in certain circumstances.