Earlier this month the Crown Prosecution Service decided there was insufficient evidence to charge Mr Christian and Ms Greig with manslaughter over Mrs Saldanha's death.

BBC: Michael Christian

It said there was insufficient evidence to charge anyone over the death but recommended action for perverting the course of justice for three officers, and there was "grave suspicion" over one of them, only identified as "Officer E".

BBC: Blair Peach

During their last ditch attempt to avoid extradition, lawyers for Babar Ahmad and Talha Ahsan pressed the CPS in court to clarify why there had never been a charge in the UK. The CPS said it considered some charges - but had insufficient evidence to prosecute.

BBC: New trial location rules follow terror extraditions