Lawyers for IBRC's special liquidators say there have been clear deficiencies by the family of bankrupt businessman Sean Quinn, in their obligations to disclose information to the bank.
The lawyers are trying to police court orders from 2011 stopping the Quinns from moving assets in their International Property Group beyond the bank's reach.
The liquidator's legal team is trying to piece together the money trail from the Quinn's International Property Group.
Having cross-examined the five children of Sean Quinn in January the bank claims they have not been upfront in disclosing all relevant information.
In certain instances, lawyers say the supposed lack of available documents is neither "credible nor acceptable".
In their evidence, the court heard of large cash withdrawals from ATM machines by Quinn family members and of six-figure wage packets from Russian property companies with minimal paperwork.
Senior counsel for IBRC's liquidators Shane Murphy is arguing before Mr Justice Peter Kelly that there is a need for new court orders directing further co-operation by the Quinns.
The hearing continues.