Takes Precedent....

[Dakota]

I suppose it may depend on the nature of the IP, but the following infractions, resulting in an IP call, do not require the hands to separate:

1) Foreign substance on the ball
2) Taking a position on the plate without the ball
3) Keeping both feet in contact with the plate

In addition, infractions such as a leap, stopping, reversing, etc., are made before the runner may legally leave the base.

Once the umpire signals the infraction (whatever it is) the call has been made.

I can't find anywhere in the book where it states that a leaving early violation takes precedence over an IP, so therefore the offense keeps their option of enforcing the penalty or the results of the play.