In April 1993, the parties returned to negotiations, in what was known as the Multi-Party Negotiating Process (MPNP). A committee of the MPNP proposed the development of a collection of "constitutional principles" with which the final constitution would have to comply, so that basic freedoms would be ensured and minority rights protected, without overly limiting the role of the elected constitutional assembly. The parties to the MPNP adopted this idea and proceeded to draft the Interim Constitution of 1993, which was formally enacted by Parliament and came into force on 27 April 1994.