I heard most of it consists of the poor police work from L&B. This doesn't warrant a re-trial at all. Completely irrelevant. Why doesn't Sandra understand it wasn't the police who convicted Luke, but the courts?
Another fault I'd pick based on what I heard is focusing on MK, and lying about an absolutely striking resemblance.
You want a retrial on the grounds of a new suspect, who's long been ruled out?