Backcourt or No?

[just another ref]

I would like to see the phrase "from the team not in control" removed from this rule. This is still confusing, as proven when we discussed (beat to death?) the numerous situations where neither team is in control yet the end of the play can still be a backcourt violation.

9-9-3: (revised) A defensive player, or any player during a jump ball or throw-in, may jump from his frontcourt, secure control etc.........


Do we agree that the defensive player exception still applies when there is no team control yet established after a throw-in?

A1's throw-in pass glances off the hands of A2. B1 leaps from his frontcourt, intercepts the pass and lands in his backcourt. Ruling: legal play

Even though there is no team control and no definition of defensive player, (but there was something obscure somebody quoted from a case play, maybe) I still consider B1 to be a defensive player in this circumstance.