You could try the same thing. It was determined that the original claims were premature and the organic matter was not original tissue but an algal residue aka slime.
http://blogs.usatoday.com/sciencefair/2008/07/study-t-rex-sof.html
In the case of the latest ( hadrosaur) investigation, extraordinary care was taken to avoid any claims of contamination. Try doing a few google searches.