“ Possession inherently includes the power or authority to preclude control by others. It is possible, however, for more than one person to possess an item simultaneously, as when several people share control of an item. An accused may not be convicted of possession of a controlled substance if the accused did not know that the substance was present under the accused's control. Awareness of the presence of a controlled substance may be inferred from circumstantial evidence. ”

“ Manufacture. "Manufacture" means the production, preparation, propagation, compounding, or processing of a drug or other substance, either directly or indirectly or by extraction from substances of natural origin, or independently by means of chemical synthesis or by a combination of extraction and chemical synthesis and includes any packaging or repackaging of such substance or labeling or relabeling of its container. The term "production", as used above, includes the planting, cultivating, growing, or harvesting of a drug or other substance. ”

“ But, possession, use, distribution, introduction, or manufacture of a controlled substance may be inferred to be wrongful in the absence of evidence to the contrary. The burden of going forward with evidence with respect to any such exception in any court-martial or other proceeding under the code shall be upon the person claiming its benefit. ”