In the Tenenbaum case, defense expert witnesses were rejected, including Dr Johan Pouwelse, who has published on Kazaa and conducted the largest (2-years!) measurement of Bittorrent. He told TorrentFreak that it was “amazing how the plaintiffs in this case where allowed to let 3 record executives complain for hours and not let any professor take the stand in favour of Joel.”
via torrentfreak.com