The Nigerian government refused to discuss a prisoner transfer agreement with Britain unless the Crown Prosecution Service dropped corruption charges against a favoured member of the ruling party, leaked documents disclose. Britain is keen to secure an agreement allowing the transfer of more than 400 prisoners back to Nigeria. But talks over the agreement stalled after Britain refused to drop charges against James Ibori, a member of the ruling People's Democratic Party, who is accused of stealing more than £196m of state funds and channelling 'dirty money' to Britain, report the Daily Telegraph.