If a state law infringes on a right that we have under federal law, one has the right to take the matter before a federal court to have the state law determined to be unconstitutional and unenforceable. Many state and federal agencies have published administrative law rules and regulations that explain their positions and interpretations of statutes that affect their agency. The court system interprets the law during the course of court proceedings on an ongoing basis. The decisions of judges dating back to the 12th century England when there was no established case law has resulted in common sense principles which establish the principles of common law which are still applicable today. A. Jurisdiction is the power or authority of the court to determine issues before it.
Many courts have different jurisdictions.
An appellate court, for example, hears appeals and does not have authority to conduct jury trials. Some courts cannot decide cases where the amount in controversy exceeds a certain amount. Certain state courts do not have jurisdiction to consider federal issues. A state court does not have jurisdiction to hear an appeal from a federal court. Before filing any lawsuit, it is necessary to determine which court has jurisdiction over the controversy.