title: Excepted substances: a comparison of Federal and state laws.
abstract: A state law has placed an obligation on the criminal investigation laboratories to screen and quantitate all preparations, both pharmaceutical and illicit, that fall under the provisions of "Excepted Substances." Without complete screens on these preparations, there is room for erroneous indictments as well as possible acquittals on technicalities.
mesh_terms: D004335:Drug and Narcotic Control; D005104:Expert Testimony; D005554:Forensic Medicine; D007880:Legislation, Drug; D013781:Texas; D014481:United States