Curious about friends charges and best strategy for defense!?

My best friend who has 1 prior recently got arrested for posession! (Actual Charges)Transport/sell narcotic controlled substance-les Does anyone know what the les stands for? poss.marijuana 28.5 grams or less/violation of parole/posess narcotic controlled substance! Authorities tend to exaggerate the facts (the 3 drug charges pertain to 1 amount) not exactly sure of amount but he had it for personal usage not what the arresting officers jumped the gun and umed! My friend was already under prop 36! Im really concerned for his future! Can someone with or without experience dealing with these type of cases please help me provide him with the best strategy in dealing with this unfortunate situation to make it one thats resolved with minimal time of incarsoration!!