imho not making a decision impacts on my rights. see link below.
ie. the unreasonable delay of *an otherwise reviewable* decision ought to be a reviewable decision too. must admit i will have to search AustLII high and low to find a case example of that. maybe CASA are brilliant legal innovators after all! :P
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Kitto J continued to state that to ascertain the true character of the law, we examine what it does "in the way of changing or creating or destroying duties or rights or powers"
LINK