Two tonnes of documents have been dumped in an Ipswich tip, after a Queensland Union Boss ordered them to be burned by two officials.

David Arthur Hanna is accused of destroying, concealing or mutilating documents in April 2014 that could have been required as evidence at a royal commission into alleged trade union corruption.

Prosecutor Glen Rice, QC, told the court Mr. Hanna deliberately set out to destroy nearly seven tonnes of documents after learning the Trade Union Royal Commission would focus on the CFMEU.