Yeah.. so what would be wrong with a law that says dispensaries must have their medicine tested by a lab for THC content and certified free of pests and mold? What would be wrong with the Division of Weights and measures coming in and checking their scales for honesty, as they do in every other business that sells by weight? All regulation has costs and benefits; we should concentrate on choosing the right regulations rather than refuse to "give them an inch." In my opinion, the right regulations are those that benefit the consumer with more knowledge, protect the consumer from poisons and impurities, and prevent a retailer from misrepresenting his product or lying to his customers.
We are already headed this way without government getting involved in quality. As supply increases, the consumer will look for herb certified by reputable labs. Most dispensaries know what they are looking for when they buy from vendors, and those that don't won't be around long.

Check the scales. sure. why not.