There are thousands of court cases that have addressed various circumstances which either do or do not constitute knowing and intentional possession. Those cases must be reviewed, analyzed, and then analogized to your case so that a proper argument and defense can be crafted. Accordingly, it is extremely important that you consult an experienced attorney so that he can properly prepare your case.
Narcotics cases often involve constitutional search and seizure issues, scientific and technical issues pertaining to the lab analysis, evidentiary issues regarding the chain of custody of the drugs, and witness credibility issues given that these cases often involve confidential informants. These potential issues, if pursued, can work in your favor. However, you must be absolutely certain that your Fairfax drug possession attorney understands the mechanics of a narcotics investigation and prosecution.