It's the same policies.
It's the same tests.
It will be the same results.
It will be the same results.
I think the only difference is that Nifong is spinning the second result as a match. He hoped for more markers from the second test and didn't get them. If he'd known that going into the second test, he would have spun the first set of results on the fingernail as a "match." It's typical rat procedure: it doesn't matter if something is true. We'll just say x=y and that's it, rational thought and scientific principles be damned.
It also occurs to me that he had the first set of results back before Mangum "identified" the suspects, so Nifong and others knew who had a few matching markers on the one nail when the photo line-up was run.