This case asks whether Alabama law enforcement officers can demand physical ID when enforcing an Alabama that allows them to “Stop and Question” people they reasonably suspect of criminal activity. Although the U.S. Court of Appeals for the Eleventh Circuit has already held that Alabama’s stop-and-question law does not authorize officers to demand physical ID, a federal district court in Alabama certified a question to the Alabama Supreme Court effectively asking the Court to reject that interpretation. The ACLU’s State Supreme Court Initiative, along with the Cato Institute, the Southern Poverty Law Center, the Woods Foundation, and Kaplan Legal Services, filed an amicus brief urging the Alabama Supreme Court to agree with the Eleventh Circuit’s ruling. Our brief argues that the plain meaning of the stop-and-question law—given its title, its text, and the overall structure of the Alabama Code—rules out the possibility that it authorizes demands for physical documents. We also point out that interpreting the stop-and-question law to authorize document demands would render the law unconstitutional under both the U.S. and Alabama Constitutions.