If John Banks is to be believed and there is in fact "unimpeachable" evidence that he is innocent, then a grave injustice has been done to him. Such evidence does not require yet another legal hearing - it just needs to be aired [eared?] publicly and immediately.
Ref: http://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=11302429

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