I was watching the Michigan State-Iowa basketball game a couple weeks ago, and commentator Jay Bilas noted his view (which he has stated previously) that the lane violation rule is wrong. I am teaching Sports Law and an Energy Law Seminar this semester, so (naturally) I linked his comments to a broader framework.
So start, here's the current rule. Basketball for dummies explains:
Lane violation: This rule applies to both offense and defense. When a player attempts a free throw, none of the players lined up along the free throw lane may enter the lane until the ball leaves the shooter's hands. If a defensive player jumps into the lane early, the shooter receives another shot if his shot misses. An offensive player entering the lane too early nullifies the shot if it is made.
Bilas argues that a defensive lane violation should result in the ball being awarded to shooter's team instead of another attempt at the free throw for the shooter. His rationale is, "The advantage to be gained going in early is on the rebound, not the shot. Give the ball to the non-violating team." This is probably right, though a player might enter the lane early