I agree, we do not have to prove anything - we know the rules.
For jewelry, I have been coached by legal council to my association to ask if jewelry is under tape. If they say yes, they can not play. If they say no, play on. If the tape comes off and jewelry is detected, it is a red card.
There is not a rule that says you can not play with tape on your body. We had a incident that prompted this approach.
You don't see this in high school (yet), but I have had college players that I suspected where wearing jewelry under there uniform....it is not appropriate to have them 'prove it'.
