Mexican laws are based on a civil law system, primarily derived from the Constitution of Mexico, which was enacted in 1917. The legal framework includes federal, state, and municipal laws, with the federal government having authority over national matters. Key areas of law include criminal, civil, labor, and administrative law, all designed to protect citizens' rights and maintain order. The Judicial Branch of Mexico interprets and applies these laws, with the Supreme Court being the highest authority. Legal proceedings can vary by state, but all must adhere to the principles outlined in the Constitution, ensuring a uniform legal system across the country.