James Maloney has been sin binned just ten minutes before half time, taking QLD to a 8 - 0 lead.
Slater came from nowhere and while Maloney didn't look for Billy, he did impede on his run, Girds remarked.
The video ref labelled it as Maloney "running Billy off the ball".
"Maloney goes for the ball and checks his run, and Billy runs into his back," Girds said.
"I have no problem with that."