Bruce Hood has a suggestion, just use the rule book

And perhaps they had the answer all along but could not see it!

With the NHL all over the map suddenly when it comes to enforcement of overly physical play ( a Cooke hit nets noting, a Wisniewski however merits an eight game suspension) there’s a call from a former official to just re-read the rule book in particular Rule 43.1…

(from  the blog a town called podunk, click on the link below to see the entire article … -rule.html )