Yesterday the Ministry of Defence announced that British forces may take more than the Nato limit of 96 hours’ detention to extract vital intelligence from Afghan detainees before they have to be released from UK facilities.
Nb. The link is not wrong that passage was in the article but it has now been changed by The Independent, so instead the Guardian has it here
Under Nato guidelines, captured insurgents should be handed over to the Afghan authorities or freed within 96 hours. British forces will be able to override the guidelines and commanders in Afghanistan will review cases every 72 hours.