Chapter 3PROOF
Division 2Hearing of Witnesses
§ 67. Ensuring safety of witnesses
(4) Information concerning the name, personal identification code or, in the absence thereof, date of birth, citizenship, education, residence and place of employment or the educational institution of a witness declared anonymous shall be enclosed in an envelope bearing the number of the criminal matter and the signature of the person conducting the proceedings. The envelope shall be sealed and kept separately from the criminal file. The information contained in the envelope shall be examined only by the person conducting the proceedings who shall seal and sign the envelope again after examining the information.
1. States Parties shall, in accordance with the provisions of this Part and under procedures of national law, comply with requests by the Court to provide the following assistance in relation to investigations or prosecutions:
(j) The protection of victims and witnesses and the preservation of evidence;