backcourt?

[chas]

Went to an IHSA clinic and heard some confusing things from some of the volunteer coordinators such as it is a T for unauthorized leaving of the court. I thought that was changed to a violation. Also if wrong player shoots first of 2 free throws, then a timeout, you can't correct the error.Then someone asked if on a throw in by A1 can A2 catch the ball in the air and land with the first foot in frontcourt and the second foot in the backcourt. There were conflicting answers. Backcourt or not?