Which constitutional provision reserves to the states the authority to regulate criminal law?

Which constitutional provision reserves to the states the authority to regulate criminal law?

• A. The 1st Amendment
• B. The 4th Amendment
• C. The 10th Amendment
• D. The 14th Amendment

Answer: (C)

Powers not delegated to the federal government are reserved for the states by the Tenth Amendment. This sets the rule that states have the primary authority to define crimes, set penalties, and run prosecutions within their borders. The federal government can regulate criminal law only through its enumerated powers (for example, crimes that involve interstate commerce or federal interests). The other amendments address specific protections (like free speech or search and seizure) or impose due process on state actions, but they do not grant the federal government broad control over criminal law. So, the provision that reserves criminal-law authority to the states is the Tenth Amendment.

Powers not delegated to the federal government are reserved for the states by the Tenth Amendment. This sets the rule that states have the primary authority to define crimes, set penalties, and run prosecutions within their borders. The federal government can regulate criminal law only through its enumerated powers (for example, crimes that involve interstate commerce or federal interests). The other amendments address specific protections (like free speech or search and seizure) or impose due process on state actions, but they do not grant the federal government broad control over criminal law. So, the provision that reserves criminal-law authority to the states is the Tenth Amendment.