The Court of Appeal has ordered an urgent hearing about whether John Banks should face a retrial on his false electoral return charge.

NZME reports it follows the discovery of evidence the Crown failed to disclose.

Mr Banks' parliamentary career ended after he was convicted in the High Court last year for not disclosing two $25-thousand donations from Kim Dotcom to his Auckland mayoralty campaign in 2010.

The Court of Appeal later quashed the conviction.

The Court of Appeal has now ordered a new hearing after Mr Banks' lawyer David Jones, QC, filed an application to recall its ruling in October, after he received fresh material from the Crown about a contentious lunch at the Dotcom mansion.