“Individuals from an ever widening range of groups in Iran are subject to arrest on security grounds for political activism and peaceful dissent against the government. Those arrested are frequently detained in facilities operating outside the regular prison administration, most notoriously in Section 209 of Tehran’s Evin Prison, where they may be subjected to torture and abusive interrogation. After weeks or months the authorities frequently release those held on conditional bail or a suspended prison sentence, using the ever-present threat of a return to jail to intimidate them against further activism or open dissent.”