Union fight night invoice switch: inquiry

Tickets for a union fight night event that cost $4400 were claimed on a invoice for excavation work, a royal commission into trade union corruption has heard.

The commission is examining whether a former union boss David Hanna paid for work done by tradies on his luxury Brisbane home, with allegations the costs were billed to a Mirvac's retail development at Springfield shopping centre.

Lucas Nicoll directed a plumbing, drainage and gas installation business that worked on both Mr Hanna's home and the retail project.