Pyne Gould Corporation has been forced to disclose documents to the company's former financial controller, who is fighting it over a bonus worth $140,000.
James West was found to have a personal grievance against his former employer, wealth management business PGC, after he was dismissed in April 2012.
His sacking, which the Employment Relations Authority determined took place without adequate investigation by the company, followed him paying bonuses in 2012 to four executives, including himself.
At ERA hearings last year, West said he had instructions to pay the bonuses and that provision for them had been made in financial statements.
The bonuses issue led to a dispute between West and PGC which saw him leave the company after he had repaid it. He took action claiming he had been unjustifiably dismissed and wanted lost wages, a penalty and what he said was the outstanding bonus payment of $140,000.