Since the beginning of the "Omani Spring" in January 2011, a number of serious violations of civil rights have been reported, amounting to a critical deterioration of the human rights situation. Prisons are inaccessible to independent monitors. Members of the independent Omani Group of Human Rights have been harassed, arrested and sentenced to jail. There have been numerous testimonies of torture and other inhumane forms of punishment perpetrated by security forces on protesters and detainees. The detainees were all peacefully exercising their right to freedom of expression and assembly. Although authorities must obtain court orders to hold suspects in pre-trial detention, they do not regularly do this. The penal code was amended in October 2011 to allow the arrest and detention of individuals without an arrest warrant from public prosecutors.