If a player makes a throw-in but steps on the line, what is the consequence?

When a player makes a throw-in but steps on the boundary line while doing so, the rules of basketball clearly state that this action is considered an improper throw-in. As a result, the consequence of stepping on or over the line means that the player is deemed to have failed to execute a legal throw-in. Consequently, the opposing team is awarded possession of the ball. This emphasizes the importance of adhering to the specific rules surrounding throw-ins, which are designed to maintain fair play and proper conduct on the court. Understanding this rule highlights how vital it is for players to be aware of their positioning when making a throw-in to avoid losing possession.