Cadman interview not edited: Report By TIM NAUMETZ, THE CANADIAN PRESS OTTAWA -- A tape recording at the centre of Prime Minister Stephen Harper's $3.5-million defamation suit against the Liberal party was not altered as the prime minister has claimed, a court-ordered analysis of the tape by Harper's own audio expert has found. The key portion of the recorded interview of Harper by a B.C. journalist contains no splices, edits or alterations, says the finding by a U.S. forensic audio expert. The analysis was filed in Ontario Superior Court yesterday by lawyers for the Liberal party, despite attempts by Harper's lawyer to keep the opinion out of the court file until at least next week. $1M LIFE POLICY Harper sued the Liberals in the midst of a raging controversy earlier this year over claims in a book by B.C. author Tom Zytaruk that the Conservatives offered the late Independent MP Chuck Cadman a $1-million life insurance policy in return for help defeating the minority Liberal government in 2005. The prime minister maintains that Zytaruk doctored the tape of an interview he conducted with Harper after Cadman died. When Liberal lawyer Paliare questioned Harper during cross-examination in August, Harper said of Zytaruk's question about the insurance policy: "That is not the question as he put it. He has done some editing there. "What I do know is that this answer is not the answer to this question, I think there's been some editing in this question, so I don't think it goes from this question to this answer." to this answer."