evidence: Pakistan’s former prime minister Imran Khan has been sentenced to 10 years in jail for leaking official secrets, amid a crackdown on his political party before the general election due next week. [...] The legal proceedings were highly unusual, held not in a courtroom but in the prison in Rawalpindi where Khan was being detained. They were conducted behind closed doors, which Khan’s lawyers protested was unconstitutional. [...] After one failed attempt to put him behind bars, Khan was arrested in August after he was sentenced to three years in jail in a separate corruption case. A judge later suspended the sentence but Khan was kept in jail after further charges were brought against him relating to the missing diplomatic cable.