Here’s 4 interesting videos and an excellent articles about officiating the scrum.
The scrum obviously generates a massive amount of force. Keeping the contest safe is a top priority.
England on spine and hip angles.
How a loosehead combats a tighthead bore.
How a tighthead combats a loosehead bore.
In a previous post, this article details various scenarios at the scrum and how the referee should respond. As a referee, anticipation and focusing on the details will lead to a logical decision regarding who may be at fault in a scrum.