Who controls the match, how goals and behinds are adjudicated, and what happens after every score. The laws governing umpires, goal review, and the procedure after a behind.
Four goals is 24 points. A behind is one. The maths of football is simple — the adjudication of scores, less so. Every goal needs a signal. Every close call needs a review. And behind it all, the umpires: the most scrutinised officials in Australian sport.
Law 8 establishes three categories of umpire: field umpires, boundary umpires, and goal umpires. Each has distinct duties, and together they form the officiating team that controls every match.
The field umpires are the primary arbiters of the match. They award marks, free kicks, and 50-metre penalties. They bounce the ball at centre bounces, call play on when the advantage rule applies, and stop play for stoppages. In AFL competition, three field umpires typically officiate each match, dividing the ground into zones.
Law 8.2 sets out the field umpire's specific duties: starting and ending play, awarding scores in consultation with the goal umpire, reporting players for misconduct, and enforcing the interchange rules. The field umpire's whistle governs the flow of the game — when it sounds, players respond.
Boundary umpires patrol the boundary line. Their primary duty is the throw-in: when the ball crosses the boundary, the boundary umpire stands on the line with their back to the field and throws the ball over their head back into play. They also signal when the ball is touched before crossing the boundary (which determines whether a throw-in or a free kick applies).
Goal umpires stand behind the goal line at each end. Their role is to adjudicate scores — signalling whether a kick has resulted in a goal (six points) or a behind (one point), or whether the ball has been touched, hit a post, or crossed the line off hands rather than foot. Goal umpires use a system of flags and signals to communicate their decision to the scorers and the crowd.
Law 16 is one of the most consequential laws in the game. A goal — worth six points — is scored when the football is kicked by an attacking player between the two goal posts without being touched by any other player after it leaves the kicker's foot. A behind — worth one point — is scored in any of several situations: the ball passes between a goal post and a behind post; the ball hits a goal post; the ball is touched after a kick before crossing the goal line; or the ball is carried or handballed across the goal line.
After a goal, the goal umpire signals "All Clear" — waving both flags — to confirm the score. If the ball was touched after the kick but still passed between the goal posts, the goal umpire signals "Touched All Clear" — a behind is recorded instead. These signals are critical: the distinction between a goal and a behind can decide a match.
A behind is also scored when a defending player forces the ball over their own goal line — known as a rushed behind. However, Law 18.6.3 provides that a free kick shall be awarded against a player who deliberately rushes a behind without a genuine attempt to prevent a score by the opposition. This rule, introduced to discourage defensive negativity, means defenders must make a legitimate effort to keep the ball in play rather than simply punching it through for a single point.
When there is doubt about a scoring decision, the goal umpire may call for a score review. The AFL Score Review system uses cameras at each end to examine whether the ball was touched, whether it crossed the line between the correct posts, and whether the kicker's foot made contact. The system reviews scoring decisions only — it cannot assess umpiring decisions elsewhere on the ground.
Law 17 governs what happens after a behind is scored. The defending team kicks the ball back into play from within the goal square. The player kicking in has a protected area — a zone extending from the goal line — within which no opposition player may enter until the ball has been kicked.
A kick-in after a behind does not need to travel 15 metres to be played on (unlike a mark or free kick). The player may kick to a teammate immediately outside the goal square. Importantly, a kick-in may cross the boundary line on the full without penalty — the only situation in which a kick can go out of bounds on the full without conceding a free kick.