[Game_Ender]

Even with regulation you still have to trust the companies making products. Most regulations do not require statistically significant independent sampling of every batch of product people consume. With such independent testing, you are going to have to trust the producer.

[nerfhammer]

That would make sense if the penalty of finding a tainted batch were to send it back for another one. However, the case is that if you ever get caught selling tainted products you could get shut down completely.