Anger is mounting after it emerged the UK government was told by one of its own advisers that Rwanda tortures and kills political opponents - but continued with plans to send refugees there anyway.
An email disclosed to the High Court said "arbitrary detention, torture and even killings are accepted methods of enforcing control too".
Both candidates hoping to become the next Prime Minister have vowed to continue with the scheme, which has been branded "unworkable" and "unethical" by critics.
