http://www.austlii.edu.au/au/cases/nsw/supreme_ct/2010/411.html

Evidence – statutory exceptions to hearsay rule in civil proceedings – whether person who made representation not available to give evidence about asserted fact – whether it would cause undue expense or undue delay or would not be reasonably practicable to call person who made the representation to give evidence – general statutory discretion to exclude evidence: whether probative value of evidence substantially outweighed by danger that it might be unfairly prejudicial to a party.