Collum backs decisions in Celtic's win over Hearts
Scottish FA head of referees Willie Collum backed the overturning of a penalty awarded to Hearts in their 2-0 defeat at Celtic Park, and the award of a spot-kick to the hosts in the same game, on 14 September.
Liam Scales was initially penalised for a handball but VAR intervened, meaning there was no penalty, and later Nicolas Kuhn's cross hit James Penrice's hand, leading to Arne Engels' opener from the spot.
On the Scales incident, Collum said: "The VAR looks at different angles and they quickly identify that it actually hits the defender above the T-shirt line and that's really important because above the T-shirt line is not a punishable handball.
And on the Penrice decision, he added: "The Hearts defender has his arm raised unnaturally and blocks the cross... the arm is out from the body."