The main point of that audit was to look for red flags that researchers might have cooked the books, said Scott Groner, TrisPharma's Director of Regulatory Affairs and Compliance. The Cetero researchers ran blood samples through a machine known as a mass spectrometer. By examining the timestamps of these runs, Groner said, the auditors could tell whether or not a rogue researcher would have been able to tamper with the results of the experiment. "If there was some manipulation, there would have to be some down time" for the researcher to fiddle with the samples or the machine in order to produce the desired result, he explained. Auditors, he added, "were looking for many other things. Were [experiments] done late at night, on weekends?"