No police officers will be prosecuted over allegations they assaulted a British man facing extradition to the US on terrorism-related charges.
Mr Ahmad's lawyers complained of "brutal" police treatment
Babar Ahmad, 30, of Tooting, south London, said he was beaten up and abused by police when he was first arrested in December of last year.
But the Crown Prosecution Service has decided not to proceed with the case.
Mr Ahmad was remanded in custody on Friday after his third appearance at Bow Street Magistrates' Court.
Lawyers for the terror suspect have described his treatment by arresting officers as "brutal".
BBC Home Affairs correspondent Andy Tighe says family and friends of Mr Ahmad are angry that no charges have been brought.
He has denied claims he raised money to support "acts of terrorism" in Afghanistan and Chechnya.
Mr Ahmad, who is said to work with computers at Imperial College London, was arrested on 5 August in South Kensington under anti-terror laws.
He faces four charges over offences alleged to have taken place between 1998 and 2003.
Mr Ahmad's wife spoke to the BBC on condition of anonymity
Among them are claims he used websites and email to raise money and support Taleban fighters in Afghanistan.
He is also said to have had email links to a Chechen Mujahideen leader who planned the Moscow theatre attack in October 2002 in which 129 people died
Mr Ahmad's wife told BBC News there was no reason for his detention.
"As far as I am concerned he is a British political prisoner. He is innocent and he should be released," she said.
Mr Ahmad's allegations will now be considered by the independent police complaints commission, who will decide whether any officers should be disciplined.