The Scrum Half and the ELVs
How scrum halves have to adapt their defensive duties at scrums under the ELVs (experimental law variations).
In defence, the scrum half now has to stay close to the scrum. He can still challenge for the ball or aim to get out into the back line, or track back. However, the scrum half is now by far the closest defending back to the attacking back line. Defending an openside on the left, the scrum half can go round to the other side of the scrum to get into the midfield.
Defending an openside on the right, he can block the pass and then move into the midfield.
If you need more guidance on the ELVs then click here to download your free copy of The Coaches' Guide to Surviving the ELVs. You can also see the IRB's own video on the ELVs in The Huddle, by clicking here.