Syria's Al-Khatib prison was like hell, says survivor
A German court has sentenced a Syrian colonel to life in prison for crimes against humanity in a historic trial.
Anwar Raslan, 58, was linked to the torture of over 4,000 people in Al Khatib prison - known as "Hell on Earth" - during Syria's civil war.
The trial in Koblenz is the world's first criminal case brought over state-led torture in Syria.
Wassim Mukdad was locked up in Al Khatib and interrogated after protesting against the regime of President Bashar al-Assad.
He gave evidence at the trial and has also spoken to the BBC's Jenny Hill.
Read more: Germany convicts Syrian of crimes against humanity