Torture victim's records lost at Guantánamo, admits camp general

· No evidence of al-Qaida suspect's interrogation
· CCTV automatically recorded over tapes

The former head of interrogations at Guantánamo Bay found that records of an al-Qaida suspect tortured at the prison camp were mysteriously lost by the US military

Dunlavey, who supervised Guantánamo for eight months in 2002, tried to locate records on Mohammed al-Qahtani, accused by the US of plotting the 9/11 attacks, but found they had disappeared

was interrogated for 48 days - "were backed up ... after I left, there was a snafu and all was lost"

in his book Torture Team

Snafu stands for Situation Normal: All Fucked Up

was sexually taunted, forced to perform dog tricks and given enemas

Sands' report suggests the US may have also buried politically sensitive proof relating to abuse by interrogators at the prison camp

Cameras that run 24 hours a day at the prison were set to automatically record over their contents

admitted in court papers