Nifong is holding back. Thanks for the ping and update.
If he has a tox report, and didn't release it to the defense, the judge should find him in contempt of court.
Does "an incomplete sexual assault report" mean that there are tests that weren't done that should have been? I don't see how delays like this help Nifong. It just plays into the idea that he's not acting in good faith, and is trying to hide exculpatory evidence ... like the accuser's possible refusal to allow a tox screen.
The report that the defense does have indicates no tox screen was done, so it's not a matter of Nifong holding back. It's a matter of Mangum holding back at the time.