By Felix Walton of RNZ A navy officer charged with threatening to kill an interpreter in Afghanistan has pleaded not guilty. A court martial is under way at the Devonport Naval Base in Auckland this week after the former interpreter made a complaint about an incident in 2013. The complainant alleged that the accused threatened to have him blacklisted and killed after he attempted to contact the Minister of Defence about an immigration issue involving his wife. At the time, the New Zealand Defence Force was pulling out of its base in Bamyan, Afghanistan, and had offered their interpreters permanent residency in New Zealand to protect them against the Taliban. The complainant had applied for residency as a single man, but got engaged and then married shortly after his immigration interview as part of an arranged marriage. The complainant, whose identity is suppressed, was first to give evidence.…