The United States legal system is unique because it combines elements of both common law and statutory law across federal and state levels. Understanding how state legal systems work can help you navigate legal issues more effectively.
Common Law vs. Civil Law
Common Law System
The U.S. (alongside the UK, Canada, Australia, and other former British colonies) uses a common law system. In this system, court decisions (precedent) play a major role in shaping the law. Judges interpret statutes and their decisions become binding on future cases.
Civil Law System
In civil law systems (used in most of Europe, Latin America, and Asia), law is primarily derived from written codes and statutes. Court decisions have less binding authority.
The U.S. Dual Court System
Each state has its own court system that operates alongside the federal court system:
State Courts
- Handle most everyday legal matters: family law, contracts, personal injury, criminal cases, real estate
- Each state has its own constitution, statutes, and court structure
- Most cases start and end in state court
Federal Courts
- Handle cases involving federal law, constitutional issues, disputes between states, and certain diversity cases
- Include district courts, circuit courts of appeal, and the Supreme Court
State Law Differences That Matter
Laws can vary dramatically between states on key issues:
- Personal injury: Statute of limitations range from 1 to 6 years
- Divorce: Residency requirements, waiting periods, and property division rules differ
- Criminal penalties: Same crime can be a felony in one state and a misdemeanor in another
- Employment: At-will vs. contract employment; minimum wage varies from $7.25 to $16+
- Real estate: Disclosure requirements, closing procedures, and recording rules
Why This Matters for You
When dealing with a legal issue, always consult an attorney licensed in your specific state. Legal rules that apply in one state may not apply in another — and relying on the wrong information can have serious consequences.
This article provides general information about the U.S. legal system. For specific legal advice, consult an attorney in your state.