Look for these key takeaways:
Post players cannot force a shooter away from the basket by causing illegal contact.
Defensive players must stay within their vertical plane.
See the whole play when refereeing the defense.
Look for defenders pushing shooters in the back — see the whole play.
After legal guarding position is obtained, the defender may turn or duck to absorb the shock of contact.
If a defender while playing the ball causes excessive contact, it may be ruled an intentional foul.
Calling officials should remain with the play (after a foul is called) to make sure there is no extra unsportsmanlike conduct between players.
Don’t be in a hurry to report a foul – when other hard fouls have been whistled.
Make sure an extra set of eyes is always on the players while reporting.