Radical cleric Abu Qatada must remain behind bars until he leaves Britain after an immigration judge heard “jihadist files” were found on digital devices in his home.
Refusing the terror suspect bail, Mr Justice Irwin said a recent pledge by Qatada to voluntarily return to Jordan did not stop him from being a major flight risk.
Qatada was locked up in Belmarsh Prison in March after breaching a bail condition which restricts use of mobile phones and other communications devices.
The Special Immigration Appeals Commission heard that a USB stick understood to belong to Qatada’s oldest son contained videos made by the “media wing of al Qaida”.
Handing down his ruling, Mr Justice Irwin said: “A serious matter relating to the breaches of bail was revealed during the hearing.
“In his witness statement, the appellant assured the commission that nothing would be found on any of these items other than schoolwork or other innocent material.
“This assurance has proved untrue. Significant jihadist material has been found on a USB stick seized.”
Earlier this month, it emerged the controversial preacher is willing to return to the Middle East when a treaty between the UK and Jordan is ratified by both countries.
The agreement, unveiled by Home Secretary Theresa May last month, aims to allay fears that evidence extracted through torture will be used against Qatada at a retrial.