RE: Crime & Disorder Committee Co-option
S.21(10) of the 2000 Act says you can have non-voting co-optees on an OSC. That sub-section seems still to be in force but I could easily be wrong about that after so many amendments ot S.21 in recent years.
As you say, the 2009 Regulations say that you can only co-opt certain people on to a crime and disorder OSC. That apparently overlooks that you don't have to have an OSC dedicated to crime and disorder, c 'n' d just has to part of a committee's remit. So that appears to mean that the regulations apply to the committee that covers crime & disorder even when it's looking at something else entirely. Since that would make no sense, it's probably true.
One approach (which I couldn't possibly condone) would be to co-opt whoever you like on the basis that (a) your odds of getting caught are practically zero and (b) if you were caught, would it matter?