THE AFL umpires department has ticked off two contentious deliberate out-of-bounds decisions paid against Melbourne in the tense final quarter of its loss to West Coast at Domain Stadium.

Head umpires coach Hayden Kennedy was satisfied free kicks paid against midfielder Dom Tyson and ruckman Max Gawn were warranted, and he said the duo didn't do enough to keep the ball in play.

Tyson knocked the ball across the line in a contest with Eagle Jack Darling while an under-pressure Gawn fired an indiscriminate handball over the boundary. 

"We're more than comfortable that there was enough there to say that they were (both) deliberate out of bounds," Kennedy told AFL.com.au's Whistleblowers program. 

"What we need to think about obviously is the interpretation change from last year where we had to take the intent of the player into account.

"Is the intent of the player to keep the ball in play? Our umpire, in this particular case, he believed Dom didn't do enough to keep the ball in play." 

In Gawn's case, Kennedy was confident the All Australian contender wasn't penalised by the umpire for a skill error.

"Certainly there were instances over the weekend where there was some poor (skill) execution by players and they weren't paid as deliberate out of bounds," he said.

"If the umpire believed it was poor skill execution we'd hopefully see a (throw) in result from that."

And Kennedy dismissed talk parochial home crowds would influence an umpire's decision in the heat of the moment.

"In those particular cases I don't think the crowd had much influence," he said. 

"If those two decisions were wrong, you could certainly argue (the crowd pressure) was the case."