"The procedure was that everything should go via the Office for Cooperation with the Hague tribunal," Kostovic told the news programme.
He said that he was obliged to operate in compliance with the Croatian government's decisions.
According to him, immediately after Tudjman's death he ordered the sealing of his documents in a professional way.
He recalled that the Croatian government before the government led by Prime Minister Ivica Racan had won the case with the Hague tribunal about not being obliged to provide the tribunal unselectively with documents, and that it could be exempted from the obligation to deliver documents referring to national security.
Kostovic said that the former Yugoslav People's Army (JNA) had produced no document to the Hague tribunal's prosecution.