New rules introduced at the start of this season gave umpires and the match review panel the power to report players for staging for free kick, but so far no player has been reported for the offence.
The closest test case came on Monday when the match review panel assessed an incident involving Port Adelaide's Kane Cornes but could not determine if Cornes was "bumped to the ground" by Geelong's Corey Enright or "fell to the ground".
"The basic reason that [umpires don't report players for staging] is because on game day, when things are happening at great speed and there are a lot of reflex actions, it's very difficult for the umpires to see what's happened," Gieschen said.
"We've seen instances in the past where an umpire has told a player 'don't throw your head around, you've thrown your head back' - and two minutes later there is blood trickling out of the nose or an eye and there has been high contact.
"It's difficult for the umpire on game day to call it as they see it and from the match review panel perspective, they can have a look at it on video and slow things down and have a really good controlled look at it from a lot of angles. It puts the match review panel in a better position to make those calls."
Gieschen said umpires could inform the match review panel of players they believed were staging.
He said umpires often warned players not to throw themselves and explained they weren't going to fall for any staging.
"When a player does stage and when they do throw their bodies around and their heads around or throw themselves forward, it does make it extremely hard for the umpire," Gieschen said.
In the first four rounds of football this season, Gieschen said staging had not been a major issue.
"The level of trying to milk free kicks or stage free kicks has reduced significantly," he said. "We're seeing very little of it."
