Finding Error When Tribunal Refuses Waiver of PIC 4020

How can you tell whether the Tribunal has committed jurisdictional error when it has refused to grant a waiver of Public Interest Criterion 4020?
And how can you know whether it is “worth it” for your client to challenge the refusal in the Federal Circuit Court? In other words, that there are at least “reasonable prospects for success” if your client fights the waiver refusal in the FCC?
Fortunately, a decision handed down yesterday by Judge Riley of the FCC in Melbourne provides some useful guidance: Bi v Minister for Immigration & Anor (2017) FCCA 2652 (1 November 2017).
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