Laar,
In 13 years service I was never charged, in civvy life I have no criminal convictions so I wont be asking the about rights "the next time I am in the clink" .. there has not been a first.
And as a 18 year old LAC who had been in just about a year I would have thought me knowing my rights in an unfamiliar situation like that would be secondary to the RAFP Cpl's following the proper proceedures but I take your point.
In fairness I met some good RAFP's who acted reasonably and were decent guys, unfortunately I found then too few and far between.
And after that experience I never trusted another one again.