Marvel Stadium has agreed to tone down its security presence after a frustrated Gillon McLachlan summoned the venue's chief executive Michael Green to his office on Monday morning.

The AFL remains steadfast in its view that at no stage did it initiate a crackdown on fan behaviour, but it was in fact Melbourne's two main football grounds, the MCG and Marvel Stadium, which took it upon themselves to change security protocols in direct response to a spate of violent incidents at games early in 2019.

The edict was presented in a media conference featuring Victoria Police Commander Tim Hansen, MCC boss Stuart Fox and the AFL's GM of clubs and operations Travis Auld two months ago.

The trio announced that the AFL, the stadiums and police would be more vigilant in the wake of violent incidents, but for whatever reasons the messaging was somewhat lost on football fans.