It should be made public that every ref & linesman will be receiving instructions from the governing bodies that the letter of the law has to be adhered to, make it plain that the directive is coming from the top. No doubt some will still berate the officials but if it’s well publicised that it’s come from the ruling bodies only the dimwits will carry on abusing the officials. Unfortunately there are many dimwits in the game. If it’s applied across the board there should be no grey area. Many’s the time I’ve seen shirt tugging & grappling ignored but have my heart in my mouth when one of ours does it shortly after fearing that this time it’ll be penalised.