1. Where elephant tusks are found in a motor vehicle belonging to or controlled by accused persons, wrapped in their belongings, and they display suspicious behavior during the search, this constitutes prima facie evidence of possession sufficient to put them to their defense - discharge at close of state case is inappropriate. 2. A confession that materially contradicts physical evidence and the circumstances of the case cannot form the sole reliable basis for conviction. 3. An unconfirmed warned and cautioned statement obtained in circumstances where the accused consistently denied knowledge of the offense to arresting officers, and where no credible evidence shows the accused had opportunity to commit the acts confessed to, should not be relied upon for conviction. 4. The trial court has a duty to independently assess evidence and should not simply accept inappropriate prosecutorial concessions, particularly regarding discharge applications under section 198(3). 5. On review, even where poorly articulated grounds are raised, the court must examine whether proceedings accord with real and substantial justice and may intervene to remedy fundamental miscarriages of justice.