The Supreme Court of Florida is the highest court in Florida. The Supreme Court's rulings must be followed by all jurisdictions.
In this case we consider the constitutionality of the provisions of chapter 893, Florida Statutes (2011), the Florida Comprehensive Drug Abuse Prevention and Control Act, that provide that knowledge of the illicit nature of a controlled substance is not an element of any offenses under the chapter but that the lack of such knowledge is an affirmative defense.
State v. Adkins, 96 So. 3d 412, 414 (Fla. 2012)
The 11th Circuit decided that Florida Statute 893.101 is constitutional. This statute allows for the jury to make a permissive presumption that possesiing illicit drugs satifies the knowledge element.