This is an example of an illegal screen after a dribble hand off. In this example, White 1 executes a dribble hand off to teammate White 10, who has a trailing defender, Black 1.

After the hand off, White 1 continues his forward motion and runs into Black 1. White 1 was never stationary at the point of contact, or prior to the point of contact. This is an illegal screen by White 1.