The House of Lords is to decide for the first time whether evidence obtained under torture is admissible when it hears a legal challenge by 14 men held under anti-terrorism legislation.

Security services have admitted in earlier hearings that intelligence that led them to detain the suspects was obtained under duress from prisoners held in Guantanamo Bay and the Middle East. Natalia Garcia, a solicitor for two of the men, said: "We've argued that it was unfairly obtained but the reply was they would assess it 'in the round'."