The AFL has reinforced that players must not improve their angle to the goal posts or move off their line when attempting a set shot in a memo sent to all 18 clubs.
Confusion hit fever pitch when Hawthorn's Nick Watson was denied a goal after the half-time siren in Round 12 against St Kilda when the adjudicating umpire waved play on as he moved off his line.
The league backed the umpire's call, although, given Watson didn't improve his angle, questions from the Hawks camp were raised, including the small forward and coach Sam Mitchell after the win.
The memo, revealed by AFL Media, also touched on five other rule interpretations which have previously drawn scepticism, including pushing, bumping and tackling over the boundary line, as well as shoving opponents into a contest.
It is understood that umpires will have a lower tolerance of these incidents, given the potential to cause injury.
High contact free kicks and umpire contact charges were also on the agenda from Swann and the AFL.
So far this season, there have been 45 charges of careless contact with an umpire, although Gold Coast is challenging Daniel Rioli's Round 14 fine.
If the Suns are unsuccessful, it will be the fifth penalty regarding umpire contact this year, resulting in a fine of up to $50,000 from the league.
Collingwood and the Western Bulldogs have been penalised four times, while Brisbane, GWS and Adelaide have notched up three.
The stand rule was also clarified, with Swann saying players don't have to freeze when called to stand, and can face the player with the ball.
