Sabir Mahfouz Lahmar

Lahmar was arrested in Bordeaux in May 2017. He was suspected to be a member of an alleged ISIL recruiting network.

Lahmar was transferred to French territory for release on November 30, 2009. Noting that Lahmar would "finally begin to live a normal life again", the French foreign ministry pledged to help re-integrate him into society.

Lahmar was one of six Algerian nationals whose petitions for habeas corpus reached the United States Supreme Court. In 2008 it ruled on them together under Boumediene v. Bush, deciding that detainees and foreign nationals were covered by constitutional protections allowing them to sue for habeas corpus. The Bush administration had contended that detainees at Guantanamo had no rights under the constitution. The cases were referred to US District Court for review.

US District Court Judge Richard Leon ruled in September 2008 on Saber's habeas corpus petition. He concluded that there was no evidence to support classifying him as an "enemy combatant", and that he should be released. He made the same ruling for four other Bosnians of Algerian descent.

In its coverage of his release the Washington Post noted that Leon's September 2008 ruling had ordered his release "forthwith".

Sabir Mahfouz Lahmar was captured in Bosnia and Herzegovina in January 2002, after being cleared of suspicion by the Bosnian Supreme Court, and arrived in Guantanamo on January 21, 2002. In 2009, he was released from Guantanamo after France agreed to accept him. He was transported there on November 30, 2009, and lives in Bordeaux.

Sabir Mahfouz Lahmar (born May 22, 1969) is a Bosnian citizen, who won his habeas corpus petition in United States federal court after being held for eight years and eight months in the military Guantanamo Bay detainment camps, in Cuba.