Which power is NOT given to federal judges?

Federal judges play a critical role within the judiciary system, but their powers are specifically defined by the Constitution and federal laws. One key function of federal judges is to interpret federal laws, ensuring that they are applied correctly in various legal contexts. They also possess the authority to conduct jury trials in federal cases, which is fundamental to the legal process and the rights of defendants.

Ruling on constitutional matters is another important power granted to federal judges. They are often called upon to interpret the Constitution, especially in cases that involve disputes over its meaning or application. This checks and balances system is crucial in maintaining the rule of law and the rights guaranteed by the Constitution.

In contrast, creating laws is not a power vested in federal judges. Law-making is a responsibility specifically assigned to the legislative branch of government. Federal judges can interpret and apply laws but cannot create new laws or modify existing ones. This separation of powers ensures that the judicial branch remains independent and does not infringe upon the legislative authority granted to Congress. Thus, the power to create laws for federal jurisdiction is not within the scope of what federal judges are authorized to do.