A/HRC/19/61/Add.4 impartial investigation of the whereabouts of Messrs. Al Shahyoni; to provide information regarding the legal grounds for their arrests and secret detention and to ensure the accountability of those responsible. (f) JUA 04/08/2011 Case No. SYR 9/2011 State reply: None to date Alleged continued use of excessive force and arbitrary detention in relation to the continued violent crackdown against demonstrations. 153. The Special rapporteur regrets that the Government of Syrian Arab Republic has failed to cooperate with the mandate established by the Human Rights Council through its lack of response to the communication dated 4 August 2011. The communication referred to the alleged incommunicado detention of Mr. Moutaz Mourad; the alleged secret detention and solitary confinement of Mr. Anas Al-Shughri; the alleged denial of food and medication during detention of Mr. Sabri Mirza; and the alleged secret and incommunicado detention of Mr. Rami Mohamed Dalati, Mr. Osama Nasser, and Mr. Mohammad Alammar. The Special Rapporteur would like to draw the attention of the Government to paragraph 6 of General Comment No. 20 of the Human Rights Committee; article 7 of the Basic Principles for the Treatment of Prisoners; rules 22(2) and 25(1) of the Standard Minimum Rules for the Treatment of Prisoners, and paragraph 8(b) of Human Rights Council Resolution 16/23. In light of the fact that no evidence has been provided to the contrary, the Special Rapporteur is persuaded that there has been a violation of rights of the above mentioned persons under the UN Convention against Torture. The Special Rapporteur urges the Government to cease the practice of incommunicado and secret detention; calls on the Government to undertake a prompt and impartial investigation of the allegations of torture or other cruel, inhuman or degrading treatment or punishment; to ensure the accountability of those responsible; and to prevent recurrence of these acts. (g) JUA 10/08/2011 Case No. SYR 10/2011 State reply: None to date Alleged arrest and possible enforced disappearance. 154. The Special Rapporteur regrets that the Government of Syrian Arab Republic failed to respond to the communication dated 10 August 2011, thereby withholding cooperation with the mandate established by the Human Rights Council. The communication referred to the alleged secret detention of, and denial of medication for Mr. Mohamed Jamal Al Tahhan, a political activist. The Special Rapporteur would like to draw the attention of the Government to paragraph 8(b) of Human Rights Council Resolution 16/23 and principle 24 of the Body of Principles for the Protection of All Persons under Any Form of Detention or Imprisonment. In light of the fact that no evidence has been provided to the contrary, the Special Rapporteur concludes that there has been a violation of the rights of Mr. Al Tahhan under the UN Convention against Torture. The Special Rapporteur urges the Government to cease the practice of secret detention and calls on the Government to undertake a prompt and impartial investigation of the allegation of denial of medication; to ensure the accountability of those responsible; and to prevent the recurrence of these acts. (h) JUA 30/08/2011 Case No. SYR 13/2011 State reply: None to date Alleged arrests, physical assault, ill-treatment, charges, and incommunicado detention. 155. The Special Rapporteur regrets that the Gvernment of Syrian Arab Republic failed to respond to the communication dated 30 August 2011, thereby withholding cooperation with the mandate established by the Human Rights Council. The communication referred to the alleged secret detention of Mr. Walid Al-Bunni and his son, the alleged ill-treatment of Ms. Handai Zahlout to obtain confession, the alleged physical assault on Mr. Mohamed Najati Tayara in prison, and the alleged incommunicado detention of Ahmad Tomeh before being released. In this regard, the Special Rapporteur would like to draw the attention of the Government to articles 7 and 12 of the UN Convention against Torture, to paragraph 1 and paraghraph 8(b) of Human Rights Council Resolution 16/23, and to principle 15 of the UN 68