"Over generalised with little basis in fact?" Is that you trying to sound authoritative?
You're not the only one who's seen both sides of the fence and there is plenty of fact in that post. If you would care to highlight the 'generalisation' I'll discuss it with you, alternatively you can check the HMIC website as I suggested. I wouldn't argue that CivPol have more volume crime to deal with, as they operate in areas that suffer more social deprivation than do RMP, but CivPol lose a substantial amount of summary cases (where @ 70% of their work goes) due to poor police work/file preparation. RMP do not. Fact.
I'd say that your post needs to be more specific if it's an argument you want, as it is very 'general'.
I think RMP would loose a far greater number of cases if they were at magistrates court as opposed to Summary Hearings.
The service justice system seems less concerned with due process and absolute procedure. I don't think it's a better standard of investigation.