I'm pretty sure "Innocent until proven guilty" doesn't apply in cases of rape? At least, it doesn't in the UK (/England, the thing I was reading was English Law related). The assumption from the police from the moment someone reports they have been raped is that they are telling the truth until there's evidence to confirm they were raped or are lying. Like, I'm sure you can't prosecute based on word alone, but the assumption is still there.
Stops the disgusting attitude which accuses all women of being liars for reporting rape until they provide evidence that proves it anyway. That's one of the main reasons why so few people report rape, horrible.
Luke saying that his case is outside the statute of limitations does seem fishy, but I suppose he might just want the case dismissed as soon as possible to sorta clear his name?