0031-0330 irl.qxd 2.3.2009 14:20 Page 217 PROTECTION OF CIVILIAN PERSONS 217 departments concerned with such matters to provide the aforesaid Bureau promptly with information concerning all changes pertaining to these protected persons, as, for example, transfers, releases, repatriations, escapes, admittances to hospitals, births and deaths. ART. 137. — Each national Bureau shall immediately forward information concerning protected persons by the most rapid means to the Powers of whom the aforesaid persons are nationals, or to Powers in whose territory they resided, through the intermediary of the Protecting Powers and likewise through the Central Agency provided for in Article 140. The Bureaux shall also reply to all enquiries which may be received regarding protected persons. Information Bureaux shall transmit information concerning a protected person unless its transmission might be detrimental to the person concerned or to his or her relatives. Even in such a case, the information may not be withheld from the Central Agency which, upon being notified of the circumstances, will take the necessary precautions indicated in Article 140. All communications in writing made by any Bureau shall be authenticated by a signature or a seal. Transmission of information ART. 138. — The information received by the national Bureau and transmitted by it shall be of such a character as to make it possible to identify the protected person exactly and to advise his next of kin quickly. The information in respect of each person shall include at least his surname, first names, place and date of birth, nationality, last residence and distinguishing characteristics, the first name of the father and the maiden name of the mother, the date, place and nature of the action taken with regard to the individual, the address at which correspondence may be sent to him and the name and address of the person to be informed. Likewise, information regarding the state of health of internees who are seriously ill or seriously wounded shall be supplied regularly and if possible every week. Particulars required ART. 139. — Each national Information Bureau shall, furthermore, be responsible for collecting all personal valuables left by protected persons mentioned in Article 136, in particular those who have been repatriated or released, or who have escaped or died; it shall forward the said valuables to those concerned, either direct, or, if necessary, through the Central Agency. Such articles shall be sent by the Bureau in sealed packets which shall be accompanied by statements giving clear and full identity particulars of the person to Forwarding of personal valuables