The judge in that hearing repeatedly asked Hurlburt if he had any rebuttal witnesses to the testimony that Johnson gave. His own CBI lab agrees with Johnson.
He did not put up any witnesses to refute the testimony.
If it's slanted, it's because it cannot be refuted.
Can the prosecution put up a token defense at pretrial and then challenge more during the actual trial? Such as suprise witnesses (FL woman) or additional evidence. Or is that just perry mason stuff.