[Jimgolf]

Originally Posted by BillyMac

A moving screen is not in and of itself a foul, contact must occur for a foul to be called. If a blind screen is set on a stationary defender, the defender must be given one normal step to change direction and attempt to avoid contact. If a screen is set on a moving defender, the defender gets a minimum of one step and a maximum of two steps, depending on the speed and distance of the defender.

Originally Posted by Scooby

And then you have to factor in advantage/disadvantage...you can have minor contact on a moving screen, but if the defender get around the screen and was not slowed and was not placed at a disadvantage, then it might not be a foul.

The OP is not asking about a moving screen. The officials were calling fouls on the defenders for running into a stationary screen.