US Department of State Human Rights Report Algeria 2011

"According to the director general of the Prisons Administration, there were 56,000 prisoners, including 411 minors, in the country’s 133 prisons."... "The law does not provide a person in detention the right to a prompt judicial determination of the legality of the detention. Those charged with acts against the security of the state, including terrorism, may be held in pretrial detention as long as 20 months, according to the penal code, and the prosecutor must show cause every four months for continuing pretrial detention. Hundreds of rioters in January charged with looting or public disorder were held in pretrial detention, usually for 24 hours, but sometimes for several days."