Constitutional law concerns the fundamental rules that define how government is structured and what limits it must respect. It governs the relationship between individuals and the government, and between different branches and levels of government.
This area covers two broad themes. The first is the structure of government, including the separation of powers among the branches and the division of authority between national and state governments. The second is individual rights, such as freedom of speech and religion, protections against unreasonable searches, guarantees of fair procedure, and equal treatment under the law.
A key concept for non-lawyers is that constitutional protections generally restrain government action, not the conduct of private individuals or companies. Another is that courts interpret broad constitutional language and apply it to specific disputes, and that these protections often appear inside other types of cases, such as criminal matters, public employment disputes, or challenges to government regulations.
People encounter constitutional law most directly when a government action affects them, for example a law they believe restricts a protected freedom, a government decision made without fair process, or treatment they believe is discriminatory. Because these questions are abstract and high-stakes, individuals and organizations usually consult a lawyer when a government rule, policy, or action appears to infringe a basic right.
![A General View of the Origin and Nature of the Constitution and Government of the United States [1837] - Hardcover](https://cdn.shopify.com/s/files/1/0815/6718/7195/files/BFnnD0Et1t9781584770985.webp?v=1783693494)
