The Palestinian authorities in the West Bank should take immediate measures to investigate, prosecute and appropriately punish persons under their jurisdiction responsible for these abuses; additionally, Hamas authorities in the Gaza Strip should take immediate steps to end its campaign of abductions, deliberate and unlawful killings, torture, and unlawful detentions, and to punish those responsible. The creation of an independent, impartial and non-partisan commission of experts to investigate these abuses should receive attention as a matter of priority. (35) The Committee encourages the State party to ratify the Optional Protocol to the Convention. (36) The Committee also encourages the State party to consider making the declarations under articles 21 and 22 of the Convention, thereby recognizing the competence of the Committee to receive and consider inter-state and individual communications. (37) The Committee encourages the State party to withdraw its declaration prohibiting article 20 inquiries. (38) The Committee invites the State party to ratify the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families, the Convention on the Rights of Persons with Disabilities and the International Convention for the Protection of All Persons from Enforced Disappearance. (39) The State party is encouraged to disseminate widely the report and response to the list of Issues submitted by Israel to the Committee and the concluding observations, in appropriate languages, through official websites, the media and non-governmental organizations. (40) The Committee requests the State party to provide, within one year, information on its response to the Committee’s recommendations contained in paragraphs 15, 19, 20, 24 and 33 above. (41) The State party is invited to submit its next periodic report, which will be considered as its fifth periodic report, by 15 May 2013. 50. New Zealand (1) The Committee considered the fifth periodic report of New Zealand (CAT/C/NLZ/5) at its 875th and 876th meetings (CAT/C/SR.875 and 876) held on 1 and 4 May 2009, and adopted, at its 892nd meeting (CAT/C/SR.892), the following concluding observations. A. Introduction (2) The Committee welcomes the submission of the fifth periodic report of New Zealand as well as the replies to the list of issues which provided additional information on the legislative, administrative, judicial and other measures taken by the State party to implement the Convention. The Committee also welcomes the constructive dialogue held with a competent and multisectoral delegation. B. Positive aspects (3) The Committee notes with appreciation: (a) The ratification of the Optional Protocol to the Convention, on 14 March 2007, and the establishment of National Preventive Mechanisms coordinated by the New Zealand Human Rights Commission; 102 (b) The ratification of the Convention on the Rights of Persons with Disabilities on 25 September 2008; (c) The accession to the Convention on the Reduction of Statelessness on 20 September 2006; (d) The ratification of the Rome Statute of the International Criminal Court on 7 September 2000;