The European Court of Human Rights has ruled that Poland violated the European Convention on Human Rights by allowing the CIA to detain two al-Qaeda suspects on Polish territory.
The case was brought by two men, Saudi-born Abu Zubaydah and Saudi national Abd al-Rahim al-Nashiri,.
They alleged they were flown in secret to a CIA-run jail in a Polish forest and subjected to treatment that amounted to torture.
The Strasbourg-based court ruled that Poland had violated articles of the convention on, among others, the prohibition of torture, the right to liberty, and to an effective investigation of their allegations.
It ordered Poland to pay Mr al-Nashiri €100,000 in damages and to pay €130,000 to Mr Zubaydah.
Polish officials have denied the existence of the CIA jail.
The United States has acknowledged that it kept al-Qaeda suspects in facilities outside US jurisdiction, but has not said which countries hosted them.