Food and Agricultural Code § 12992
ARTICLE 11. Violations
It is unlawful for any person to sell any adulterated or misbranded pesticide.
In any prosecution of any agent or dealer under this section it is a complete defense to prove that the adulterated or misbranded pesticide that is the basis of the prosecution was guaranteed by the party from whom the agent or dealer purchased it to be not adulterated or misbranded.