Under its terms of reference, the CAHDI is required to "provide opinions at the request of the Committee of Ministers or at the request of other Steering Committees or Ad hoc Committees, transmitted via the Committee of Ministers".

In this connection, the CAHDI has issued a large number of opinions, observations, commentaries and reports on various aspects of public international law. These have contributed to the adoption of Council of Europe Conventions and Protocols, Parliamentary Assembly and Committee of Ministers recommendations and Committee of Ministers resolutions.

This page includes the opinions issued by the CAHDI.