A rule providing that persons attending a domestic tribunal inquiry are not entitled to representation is not necessarily ultra vires the enabling legislation; such a rule validly leaves to the tribunal the obligation to determine what representation the particular case requires, judged against the touchstone of procedural fairness. There is no general right to legal representation before domestic tribunals, but particular circumstances may make legal representation essential to procedural fairness. An expectation as to evidentiary practices (such as measurement uncertainty allowances) is not a legitimate expectation of the procedural kind that attracts the Teoh doctrine.
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