Ball Never Lies 

The ball going through the hoop is the ultimate truth to determine if a call was correct or not.

A disputed foul allows someone to go to the free throw line and the player misses the shot, then the disputed foul was wrong since the "ball never lies" or if the player makes the shot then the disputed foul was right since the "ball never lies".

Ball Never Lies by James Early UD May 29, 2008