Testimony on NFA database
Here's the testimony of on the reliability of the NFA database; the critical part being testimony of Fritz Scheuren in part 6 of the transcript, starting at 1016. Dr. Scheuren's credentials were hard to beat -- among other things, he's Vice President for Statistics at the National Opinion Research Center. I haven't had time to read the transcript, but am told he testified that the NFA database might be reliable enough to start an investigation, but was nowhere near accurate enough to justify a conviction. The result was a hung jury, and there will be a retrial.
Friesen got a good pro-gun lawyer, Mack Martin of Oklahoma City, who set out to nail the prosecution's case.