Nasir Maziyad Abdallah Al Qurayshi Al Subii is a citizen of Saudi Arabia who was
held in extrajudicial detention in the United States Guantanamo Bay detention camps, in Cuba.
His Guantanamo Internment Serial Number was 497.
American counter-terror analysts estimate he was born in 1983, in Al Arib, Saudi Arabia.
Identity.
The official documents from the US Department of Defense, and from the Royal Embassy of Saudi Arabia, Washington DC transliterate Al Subii's name differently:
Combatant Status Review Tribunal.
Initially the Bush administration asserted that they could withhold all the protections of the Geneva Conventions to captives from the war on terror. This policy was challenged before the Judicial branch. Critics argued that the USA could not evade its obligation to conduct a competent tribunals to determine whether captives are, or are not, entitled to the protections of prisoner of war status.
Subsequently the Department of Defense instituted the Combatant Status Review Tribunals. The Tribunals, however, were not authorized to determine whether the captives were "lawful combatants"—rather they were merely empowered to make a recommendation as to whether the captive had previously been correctly determined to match the Bush administration's definition of an enemy combatant.
Habeas corpus.
The record shows this captive had at least two habeas corpus petitions submitted on his behalf.
Nasir Maziyad Abdallah Al Qurayshi Al Asubayi v. George W. Bush.
A writ of habeas corpus. Nasir Maziyad Abdallah Al Qurayshi Al Asubayi v. George W. Bush, 
was submitted on Nasir Maziyad Abdallah Al Qurayshi Al Asubayi's behalf.
In response, on 18 October 2005,
the Department of Defense released fifteen
pages of unclassified documents related to his Combatant Status Review Tribunal.
On 19 October 2004 
Tribunal panel 13 confirmed his "enemy combatant" status.
His Personal Representative met with him, for half an hour, on 13 October 2004. The decision memo records:
Al-Subaiy v. Bush.
Another writ of habeas corpus, Al-Subaiy v. Bush, where he was known as "Nasser Mazyad Abdullah Al-Subaiy"', was submitted on his behalf.
Administrative Review Board hearing.
Detainees who were determined to have been properly classified as "enemy combatants" were scheduled to have their dossier reviewed at annual Administrative Review Board hearings. The Administrative Review Boards weren't authorized to review whether a detainee qualified for POW status, and they weren't authorized to review whether a detainee should have been classified as an "enemy combatant".
They were authorized to consider whether a detainee should continue to be detained by the United States, because they continued to pose a threat—or whether they could safely be repatriated to the custody of their home country, or whether they could be set free.
Guantanamo record.
There is no record that Al Subii chose to participate in either his Combatant Status Review Tribunal or Administrative Review Board.
Repatriation.
Al Subii was repatriated on February 21, 2007, along with six other Saudis.
The seven men were detained, without charge, in Hayer Prison, while Saudi justice officials determined whether they had violated any Saudi laws.
References.
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