CAT/C/SYR/CO/1 prompt, impartial and effective investigation into such acts, and to prosecute and punish perpetrators and provide compensation to victims. 35. The Committee is concerned about the case of Muhannad Al-Hassani, president of the Syrian Human Rights Organization (Swasiah), arrested on 28 July 2009 and charged with “weakening national sentiment” and “spreading false or exaggerated information” in connection with his monitoring of the Supreme State Security Court. The Committee is also concerned about the case of Haytham al-Maleh, a 79-year-old prominent human rights lawyer who has been jailed repeatedly and is now on trial (art. 12 and 16). The Committee urges the State party to provide information about the legal situation and physical and mental integrity of Muhannad Al-Hassani, as well as information about the ongoing trial of Haytham al-Maleh. National human rights institution 36. The Committee notes with concern that the State party has not yet established a national human rights institution to promote and protect human rights in the State party, in accordance with the Paris Principles (art. 2). The State party should establish an independent national human rights institution, in accordance with the principles relating to the status of national institutions for the promotion and protection of human rights (the Paris Principles), annexed to General Assembly resolution 48/134. Data collection 37. While noting that some statistics have been provided, the Committee regrets the lack of comprehensive and disaggregated data on complaints, investigations, prosecutions and convictions of cases of torture by law enforcement officials, as well as on trafficking in persons and domestic and sexual violence (arts. 2, 12, 13 and 16). The State party should establish an effective system to gather all relevant statistical data in order to monitor the implementation of the Convention at the national level, including complaints, investigations, prosecutions and convictions of cases of torture and ill-treatment, trafficking in persons and domestic and sexual violence. Cooperation with United Nations human rights mechanisms 38. The Committee recommends that the State party strengthen its cooperation with United Nations human rights mechanisms, including by permitting visits of, inter alia, the Special Rapporteur on torture and other cruel, inhuman or degrading treatment or punishment, the Special Rapporteur on the promotion and protection of human rights while countering terrorism, the Special Rapporteur on extrajudicial, summary or arbitrary executions, the Working Group on Arbitrary Detention and the Special Rapporteur on the situation of human rights defenders. 39. The Committee recommends that the State party consider ratifying the Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment. 40. The State party should consider withdrawing its reservation to article 20 of the Convention. 41. The Committee recommends that the State party consider making the declarations envisaged under articles 21 and 22 of the Convention. 42. The Committee recommends that the State party consider ratifying the Rome Statute of the International Criminal Court. 13