Folsom is shown using a needle to extract vitreous fluid from a victim's eye ball at a crime scene. This is a procedure properly done by the medical examiner during the autopsy. There is no reason for him to have done this as he could not run any tests on the fluid in the field.
When Beau comes into autopsy with the dead rat, he says he measured its metabolomics with "GS/MC." The proper abbreviation of the instrument is "GC/MS."