Sami al Saadi's rendition and legal battle

Here is a summary of what is known about the rendition and legal battle of Sami al Saadi and his family:

• Mr al Saadi and his family were put on a plane in Hong Kong and taken to Libya where they were imprisoned in 2004.
• Mr al Saadi was held and tortured for a number of years, including spending 14 months in solitary confinement.

• Following the fall of Colonel Gaddafi's regime in 2011, documents found in a Government building pointed at British and American involvement in the rendition.