Question Author
Thanks everyone for the answers, it's really helped our research.
Haggisdj - We weren't aware of this rule being brought in during the 90's, and is not something our FA contact is aware of, so may need to do some further digging on that.
I just want to add something that might get a few peoples backs up....
People always say how would this be enforced.... are footballers THAT thick that they have to be told "Don't do this, or this will happen to you" or "If you talk to the Ref, you will get punished"? In Rugby 99.9% of the time, players do not question the Referee. Why are footballers so special? And please don't think I am some bitter rugby fan, football is my game, although I AM a bitter Notts County fan!