Given that the federal government has the authority to regulate interstate commerce, however, there are times when there is a conflict between the state's authority to regulate interstate commerce which falls under the state's police powers. Define and explain the concept of "police powers" and how the state's police powers might affect interstate commerce? In your response you will need to define and explain the concept of the dormant commerce clause? In Black Star Farms, LLC, et al. ("Kubasek, p.91) alleged that Arizona's three-tier system violated the dormant commerce clause. What is Arizona's three-tier system' and the two exceptions? Briefly discuss the facts of the case and whether the exceptions violate the dormant clause, Le., what was the finding of the court