Police announced that a kidnapping manual and the "penal code" used by Aum were among the documents they have confiscated.
Although a lawyer cannot be charged for filing a suit, police pointed out that Aoyama distributed copies of the letter of complaint at a press conference in January. Police explained that the letter of complaint contained the name of the president of the company, and thus he was libeled.
According to a tentative police report, the same type material was used to make plastic bags found in Satian 7 and some of the plastic-laminate bags used in the subway attack. The same report said that one of the lamination machines seized by police produced items with edge patterns the same as those used in the attack.