The Venice Commission Guidelines on Political Party Regulation provide that “parties must have the ability to determine party officers and candidates, free from government interference”; however, the lack of strong democratic intra-party structures seems to have fostered the adoption of a quite detailed legislation as a way to strengthen internal democracy inside political parties in some countries in Latin America. On several occasions the Commission has expressed the opinion that any legal requirement imposed on political parties for selecting candidates should be effectively supervised by independent bodies, such as tribunals or electoral commissions, ensuring the existence of effective remedies available to protect the freedom of association of political parties and political rights of individuals. In Mexico the Electoral Tribunal had already intervened in the past to uphold the constitutional requirement to promote the political participation of the indigenous groups and women in elections. The prohibition of the electoral authorities to decide on the appointment of leaders and candidates proposed by the Initiative (amendments to Article 41.V.B.7) can be very detrimental to the effectiveness of the quotas imposed by the Constitution and the electoral Laws.