I guess it only took 4 years from what I read
"Because of poor fruit and seed set, it took Dr. Bosland several years to have sufficient seed on hand for an extensive field trial. 'Bhut Jolokia' was grown under insect-proof net cages to produce the bulk seed, and by 2004, enough seed was available for the test."
http://www.fiery-foods.com/chile-pe...about-growing-chile-peppers/2363-saga-jolokia
Also see this section where they were skeptical of the Assam's naga shu test results. There was once a full article on cheating a hplc test but they seem to have condensed it a lot
"Response by the Chile Pepper Institute and by Dave DeWitt
As Dave noted back then, the report was interesting for the lack of detail of the methodology used to calculate Scoville Units through HPLC (High Performance Liquid Chromatography). He asked Dr. Paul Bosland, the noted chile breeder at New Mexico State University to read the report in "Current Science" and to give us an opinion. Dr. Bosland pointed out that while the HPLC should be calibrated first by using a known concentration of capsaicin solution, there was no mention of such a procedure. This alone could account for measuring 100,000 SHU too much. He also questioned the preparation of the chiles -- did they weigh the chile sample before extracting? Were the seeds, pericarp, and placenta ground together, or did they just pick the hot parts?. In light of Dr. Bosland’s skepticism, Dave repeated his challenge to the Indian scientists, Ritesh Mathur, R.S. Dangi. S.C. Dass, and R.C. Malhotra of the Defence Research Laboratory in Gwalior, India, to send him samples of the ‘Tezpur’ pods for testing by two U.S. labs -- the one at New Mexico State University, and one at Analytical Food Laboratories."