sentences:  The investigation was delayed and eventually the statute of limitations on the charges against Searle expired and a grand jury was never convened.In 1977 and 1978, an FDA task force and a panel of academic pathologists reviewed 15 aspartame studies by Searle, and concluded that, although there were major lapses in quality control, the resulting inconsistencies would not have affected the studies' conclusions.In 1980, a Public Board of Inquiry (PBOI) heard testimony from Olney and disagreed with his claims that aspartame could cause brain damage, including in the developing fetus.