Legal Question in Criminal Law in California

That depends on how long ago the sales took place. If the statute of limitations hasn't expired, you can still be charged. If charges are filed on time, and if the prosecutor can prove her case beyond a reasonable doubt, you can still be convicted. That you don't have marijuana or scales today doesn't matter.

Let's say you're charged with a sale that happened on June 30, 2015. The prosecutor would only have to prove you sold marijuana on that particular day. She would not have to prove whether you still had some six months later.