CAT/C/CHE/CO/6 awareness campaigns on the negative effects of violence against children, especially corporal punishment. Disappearance of unaccompanied minors 24. While taking note of information supplied by the State party regarding the procedure to protect unaccompanied minors, and of statistics on minors said to have disappeared from its territory, the Committee is concerned by the matter of the disappearance of unaccompanied minors and by the risk they run of becoming victims of human trafficking or other forms of exploitation (art. 16). The State party must examine the plight of unaccompanied minors closely, seek means of preventing their disappearance, improve the level of protection afforded to them and report to the Committee as soon as possible. 25. The Committee invites the State party to ratify the core United Nations human rights treaties to which it is not yet party, namely, the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families and the Optional Protocol to the International Covenant on Economic, Social and Cultural Rights; the International Convention for the Protection of All Persons from Enforced Disappearance; the Convention on the Rights of Persons with Disabilities and the Optional Protocol to the International Covenant on Civil and Political Rights. 26. The Committee draws the attention of the State party to the fact that new harmonized guidelines on the submission of reports were approved in 2009 by the international human rights treaty bodies (HRI/GEN/2/Rev.6) and invites it to submit its core document in accordance with these new guidelines. 27. The State party is urged to ensure wide circulation, particularly in all its official languages and cantons, of the report submitted to the Committee and of the Committee’s concluding observations through official websites, the media and non-governmental organizations (NGOs). 28. The Committee requests the State party to report, within one year, on its follow-up to the Committee’s recommendations in paragraphs 8, 11, 16 and 23 of the present document. 29. The Committee invites the State party to submit its seventh periodic report not later than 14 May 2014. 8 GE.10-42644