Not sure I understood the first sentence of your last post, dot. I haven't been following the story since it broke, but I wasn't aware that there was any dispute over the arresting officer's version of events or what MG's supposed to have said to him. I'd be surprised if there were, given MG's decision to accept and apologise.
It might seem strange that MG's words to the officer appeared in the news (actually, I'm not sure where they appeared). What might that mean? You could argue that someone has taken the opportunity to tweak up MG's words, knowing that he's in a bad position to defend...or possibly that MG has been known for this sort of thing inside the industry, but has had the protection of his star clout - until this opportunity to blow his cover has fallen to someone...or someone in the police has made a quick buck. All conjecture, but I can't think of a version of this plot which shows MG in a good light.