World Press Freedom Day is an appropriate day on which to consider the protection of journalists’ sources on the international plane. It is a protection that is embodied in many international instruments. For example, the Organisation for Security and Co-operation in Europe (OSCE) has always had media freedom at the heart of its operations. Hence, in the Concluding Document of its 1986 Vienna meeting (pdf), principle 40 of the principles relating to Co-operation in Humanitarian and Other Fields commits the member states to
… ensure that, in pursuing this activity, journalists, including those representing media from other participating States, are free to seek access to and maintain contacts with public and private sources of information and that their need for professional confidentiality is respected.
Similarly, principle 3(d) of the Council of Europe Resolution on Journalistic Freedoms and Human Rights (adopted at the 4th European Ministerial Conference on Mass Media Policy, Prague, 7-8 December 1994) calls for
the protection of the confidentiality of the sources used by journalists.