No. 25] (2) Interception of Communications When a disclosure order requiring access Sil to protected information or traffic data or the putting of protected information or traffic data into intelligible form, is addressed to a person who is: (a) notin possession of the protected information or traffic data to which the order relates; or (6) incapable, without the use of a key that is not in his possession, of obtaining access to the protected information or traffic data disclosing it in an intelligible form; or he shall be taken to have complied with the order ifhe discloses any key to the protected information or traffic data that is in his possession or the identity of the person he knows to be in possession of the protected information or traffic data ora key to the protected information or traffic data. (3) Itshall be sufficient for the purposes of complying with a disclosure order for the person to whom it is addressed to disclose only those keys, the disclosure of which is sufficient to enable the person to whom they are disclosed to obtain access to the protected information or traffic data and to put it in an intelligible form. (4) Where: (a) thedisclosure required by a disclosure order pursuant to this section allows the person to whom it is addressed to comply with the disclosure order without disclosing all ofthe keys in his possession; and (b) there are different keys in the possession of the person referred to in paragraph (a), the disclosure of which would compliance with the order; constitute