As I’ve said before, I hold no brief for Dr Mike Lynch, the founder of the Cambridge-based software firm Autonomy, who faces US fraud charges over the $11 billion takeover of his company by Hewlett-Packard (HP) in 2011. But I watched with foreboding as US marshals bagged Lynch under the lopsided 2003 US-UK extradition treaty and flew him to California – after the then home secretary Priti Patel declined to halt the process – and a judge there changed his pre-agreed bail conditions to place him under armed house arrest.