This case illustrates the problem of being ready for trial.  The case was scheduled months ahead, and presumably the expert was known at the time of trial.  However, the expert could not be coaxed into the courtroom.  Result?  Case dismised on failure to prosecute grounds.  AD affirms, but on failure to demonstrate prima facie case.  In either event, this is the end of the case.  Q:  Whose fault was nonappearance?