I read an article in The Australian stating that Ryan Griffen was the 1st player to be investigated for diving this year, in our NAB Cup semi final win against Port when he got a free kick anf 50m penalty in the 1st quarter.
In the end nothing happened as there was contact to Griffen who then exaggerated the effect of the contact. The AFL's mandate on this is to penalise players who fall over when there is no contact at all, not those who exaggerate contact.