Knock-ons and forward passes decide who keeps the ball.

What the two offences mean

A knock-on happens when a player, while playing at the ball, knocks it with hand or arm toward the opponents' dead-ball line. The key ingredients are forward direction and hand or arm involvement. A ball that hits the body without the player playing at it may be treated as a ricochet or rebound rather than a knock-on.

A forward pass is a throw toward the opponents' dead-ball line. The law looks at the direction of the pass made by the passer, not simply whether the ball appears to drift forward over the grass after release.

When a handling error is complete

Not every bobble is an immediate stoppage. If a player accidentally knocks the ball forward and then regains it or kicks it before it touches the ground, a goal post, the crossbar, or an opponent, play can continue. The error becomes a normal knock-on when the ball reaches one of those things first and the referee cannot play advantage.

• A dropped catch that goes forward and hits the ground is a knock-on.
• A fumbled ball that is regathered by the same player before it touches anything listed in the law can stay live.
• A ball deliberately knocked forward is more serious and is penalised.
• A player who heads the ball forward commits an offence; it is not a legal workaround.

Why momentum can mislead

Forward pass decisions are often argued because a player can be running at speed while passing. A pass may travel forward relative to the ground because of the passer's momentum, while still being legal if the passer did not throw it forward relative to themself.

That is why broadcast angles, painted field lines, and the final landing point do not decide the call on their own. Officials judge the passer's action and the direction of the throw at release. If the ball is passed correctly but later bounces forward or is blown forward by wind, that is not a forward pass.

Scrum, handover, or play on

The usual restart for an accidental knock-on or forward pass is a scrum to the non-offending team. That connects directly with the rugby league scrum rules: the team that did not make the mistake normally gets the loose head and feed.

The fifth-play-the-ball limit matters. If the team in possession commits an accidental breach for which a scrum would normally be set after the fifth play-the-ball, the result is normally a handover rather than a scrum. Rugby league does not reward a last-tackle handling error with another set piece.

Why the whistle may not come

If the non-offending team gains a clear benefit, the referee can allow advantage instead of stopping immediately. The most familiar version is a defender forcing or collecting the loose ball after an attacking knock-on and being allowed to play on.

Where an accidental breach occurs and possession changes hands, the following tackle can be counted as zero tackle. That gives the team gaining possession a fair chance to use the ball instead of being disadvantaged by the opponent's mistake. For the wider count logic, see tackle count and turnover rules.

A blocked kick is treated differently

Charging down a kick is allowed and is not a knock-on. If a defender blocks the path of a kicked ball with hand, arm, or body as it rises from the kick, the law treats that as a charge-down rather than ordinary forward handling.

This distinction matters because the ball can travel forward from the defender after contact. If it is a genuine charge-down, play can continue and the tackle-count consequences follow the separate touch or charge-down rules, not the ordinary knock-on restart.

When it becomes a penalty

An accidental forward pass in a passing movement is normally treated as misjudgement and restarted with a scrum. A deliberate forward pass or deliberate knock-on is different: the player is penalised.

Officials are more likely to treat the act as deliberate when the player clearly knows the receiver is in front, bats the ball forward to stop an opponent's chance, or uses forward handling to gain an obvious unfair advantage. The exact disciplinary consequence can vary by competition and match context, but the basic restart is no longer just an accidental scrum.

Where people get caught

• "The ball went forward, so it must be illegal": not always. A correctly passed ball can travel forward over the ground because of momentum, bounce, or wind.
• "Hands went back means automatically legal": it is strong evidence, but officials still judge the actual pass direction relative to the passer.
• "Any forward touch is a knock-on": no. A ricochet, rebound, or accidental strike by a player not playing at the ball can be treated differently.
• "A charge-down is a knock-on if it goes forward": no. A genuine charge-down of a kick is specifically allowed.
• "A knock-on always means a scrum": no. Advantage, zero tackle, fifth-tackle handovers, deliberate offences, and in-goal outcomes can change the result.

How referees sort the call

1. Identify the contact or throw: pass, loose carry, attempted catch, kick charge-down, rebound, or deliberate bat.
2. Judge whether the ball was sent toward the opponents' dead-ball line by hand, arm, or throw.
3. For a pass, decide direction relative to the passer, allowing for momentum after release.
4. For a knock-on, check whether the same player regathered or kicked the ball before it touched the ground, post, crossbar, or opponent.
5. Consider advantage and whether possession changed cleanly enough to play on or call zero tackle.
6. Choose the restart: play on, scrum, handover after the fifth play-the-ball, penalty for a deliberate offence, or another phase-specific restart.

Source material

• International Rugby League
• Rugby Football League Laws of the Game
• NRL rules and interpretations