There was a lot of action at the United States Supreme Court this week. The new Term opened with Heien v. North Carolina, the burned-out brake light case where the legal issue is whether a traffic stop may be based on an officer’s reasonable mistake of law. The oral argument transcript is here, and a good recap of the issues on SCOTUSBlog is here. For those reading the tea leaves, SCOTUSBlog predicts that the Court will affirm the state supreme court and rule that a stop may be based on an officer’s reasonable mistake of law. The Court also heard a case about prison beard policies and religious rights, and granted certiorari on a case that asks whether an officer may extend a lawful traffic stop to ask a few off-topic questions or have a drug dog sniff the vehicle. I may post separately on the latter case. In other news: