WILMINGTON, Del. - The foreign representatives of bankrupt Irish Bank Resolution Trust Corp. Ltd. (IBRC) on Feb. 27 filed a brief in the U.S. Bankruptcy Court for the District of Delaware, arguing that a creditor should not be permitted to file a separate lawsuit in federal court in New York because it constitutes "the same collateral attack" on the bankruptcy proceeding that was earlier filed and ruled upon (Kieran Wallace, et al. v. John Flynn [In Re: Irish Bank Resolution Trust Corporation Ltd.], No. 13-12159, Adv. No. 13-52547, Chapter 15, D. Del. Bkcy.).