Drug possession charges are sometimes considered less serious than those associated with drug dealing. While it is true that the consequences aren't as harsh for possession, a conviction can have grievous impacts on your future. Because of this, you need to establish your defense strategy early so you can build on it as needed.
There are various options for a defense strategy. You will likely have a primary component and a secondary one to think about. These must be fact-based and work together to show that you shouldn't be found guilty of the charges.