Backcourt or not Backcourt??

[easygoer]

This has come up twice recently with the same player. Team
A has the ball in the front court. Team B steals the ball but fails to cross the halfcourt line( Team B is still in their backcourt) Team A recovers the ball and Team A's player dribbles the ball into the backcourt. Not his momentum carring him but clear possesion has been established and he dribbles into the back court deliberetly.He claims that on change of possesion he is allowed to go into the backcourt once again.

Thanks