Halpin v Lumley General Insurance Ltd [2009] NSWCA 372

Allegation: Non-payment of legitimate insurance claim - Lumley's defence: Insurance claim was untruthful

Lumley had information about claim that was confidential - Sought to keep confidential until used at hearing, likely during cross-examination of Halpin

Judge made direction allowing information to remain confidential

Halpin argues that judge did not have authority to make direction because it contravened principles of full disclosure designed to prevent trial by ambush

What principles are involved here and how is the NSWCA likely to find on question of court's power?