[rekent]

Originally Posted by BillyMac

During a throwin, even under a team’s own basket, if the throwin is deflected, tipped, or batted by an offensive player in the frontcourt to an offensive player in the backcourt; or after a missed field goal attempt or a missed foul shot attempt, if the ball is deflected, tipped, or batted by an offensive player in the frontcourt to an offensive player in the backcourt; these are not a backcourt violations.

The four elements for having a backcourt violation are: there must be team control (and initial player control
when coming from a throw-in); the ball must have achieved frontcourt status; the team in team control must
be the last to touch the ball before it goes into the backcourt; that same team must be the first to touch after
the ball has been in the backcourt

This should be drilled into the head of every new official! Plain, simple, and hopefully unable to screw up...