hand checking

[roadking]

does the fact that a defensive player is making contact with his hand without any diplacement of the offensive ball handler justify a hand check call? i normally dont make this call unless i see displacement. i had a jv coach complain the whole game to us. i basically told him just because theres contact it does not justify a foul call without displacement, do you agree with this statement and how would you handle the coach in this situation. this was not a tight game his team won by 25.