A/HRC/21/50 remains unclear, credible information led to the conclusion that they acted in concert with Government forces. The commission found reasonable grounds to believe that war crimes, including murder, extrajudicial execution and torture, had been perpetrated by organized antiGovernment armed groups. Although not a party to the Geneva Conventions, these groups must abide by the principles of international humanitarian law. The violations and abuses committed by anti-Government armed groups did not reach the gravity, frequency and scale of those committed by Government forces and the Shabbiha. Both groups violated the rights of children. The commission is unaware of efforts meeting international standards made by either the Government or anti-Government armed groups to prevent or punish the crimes documented in the present report. The lack of access significantly hampered the commission‘s ability to fulfil its mandate. Its access to Government officials and to members of the armed and security forces was negligible. Importantly, victims and witnesses inside the country could not be interviewed in person. A confidential list of individuals and units believed to be responsible for crimes against humanity, breaches of international humanitarian law and gross human rights violations will be submitted to the United Nations High Commissioner for Human Rights at the close of the commission‘s current mandate, in September 2012. The commission reiterates that the best solution is a negotiated settlement involving an inclusive and meaningful dialogue among all parties, leading to a political transition that reflects the legitimate aspirations of all segments of Syrian society, including ethnic and religious minorities. 2