A declaration from the ambassador or other competent authority regarding the diplomatic status of state assets must be accepted on its face.
Chile filed a letter from the foreign minister stating the bank accounts were intended for the running of the Chilean embassy. Upon receipt of this letter, the onus was on the creditor to prove the contrary, which it failed to do. The court held that Chile is entitled to claim immunity, and does not have to provide more detailed information about the bank accounts. To require more from Chile would constitute "an unacceptable interference under international law in the internal affairs of this mission."