Ginny,
I found this on Playbill.com
Sixty-three onstage seats are available to theatregoers for each performance. The onstage seats represent spectators at the trial; all seats face the orchestra section of the theatre (the defense and prosecution tables, however, are angled in such a way that the onstage audience doesn't just get back-views of the stars).
If you don't mind sometimes seeing backs, I think it would be fabulous to see this onstage.