Domestic violence (23) While noting various measures taken by the State party, including the survey issued on 21 February 2007 by the National Institute of Statistics (ISTAT) on the issue of physical and sexual violence against women, and the establishment on 8 March 2006 of an ad hoc toll-free number 1522, called “Anti-violence against Women (Anti-violenza Donna)”, the Committee remains concerned about the persistence of violence against women and children, including domestic violence. The Committee further regrets that the State party did not provide statistical data on complaints, prosecutions and sentences in matters of domestic violence (arts. 1, 2, 12 and 16). The State party should increase its efforts to prevent, combat and punish violence against women and children, including the adoption of the Bill on “Awareness raising and prevention measures as well as the repression of crimes against the individual or within the household, on account of sexual orientation, gender identity and any other reason of discrimination” (Chamber Act No. 2169) which envisages, inter alia, the systematic collection and analysis of data on violence, including domestic violence. Data collection (24) The Committee regrets the lack of comprehensive and disaggregated data on complaints, investigations, prosecutions and convictions of cases of torture and ill-treatment by law enforcement officials, as well as on trafficking and domestic and sexual violence. However, the Committee takes note of the statement by the State party’s delegation that the Ministry of Justice is updating its system for the collection of statistical data which is due to be completed by the end of 2007 (arts. 11 and 12). The State party should establish an effective system to gather all statistical data relevant to the monitoring of the implementation of the Convention at the national level, including complaints, investigations, prosecutions and convictions of cases of torture and ill-treatment, trafficking and domestic and sexual violence, as well as on compensation and rehabilitation provided to the victims. (25) While noting the oral assurances given by the State party’s representatives that ratification of the Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment is envisaged shortly, the Committee encourages the State party to ratify it. (26) The Committee recommends that the State party consider ratifying the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families. (27) The Committee invites the State party to submit its core document in accordance with the requirements of the Common Core Document in the Harmonized Guidelines on Reporting, recently approved by the international human rights treaty bodies (HRI/MC/2006/3 and Corr.1). (28) The State party is encouraged to disseminate widely the reports submitted by Italy to the Committee and the conclusions and recommendations, in appropriate languages, through official websites, the media and non-governmental organizations. (29) The Committee requests the State party to provide, within one year, information on its response to the Committee’s recommendations contained in paragraphs 7, 12, 16 and 20 above. (30) The State party is invited to submit its next periodic report, which will be considered as the sixth report, by 30 June 2011. 41. Japan (1) The Committee considered the initial report of Japan (CAT/C/JPN/1) at its 767th and 769th meetings, held on 9 and 10 May 2007 (CAT/C/SR.767 and CAT/C/SR.769), and adopted, at its 778th and 779th meetings on 16 and 18 May 2007 (CAT/C/SR.778 and CAT/C/SR.779), the following conclusions and recommendations. 58