Whose task is to interpret the law?

Answer 1

The authority to interpret the law is the court's power to scrutinize the meaning of laws based on legislative intent and the rights of the accused. Both attorneys argue why the law may apply to them and the judge chooses the argument he prefers.

Answer 2

The Supreme Court of the United States, head of the Judicial Branch of the federal government, is the ultimate authority on the Constitution.

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Another Perspective:

"We the people' have the sole power to interpret the Constitution. The Judicial Branch has the power to interpret law passed by the legislative branch but NOT the power to interpret the Constitution. The Constitution was not written by the Legislative Branch nor is it subject to judicial review by the Judicial Branch including the Supreme Court. The Supreme court has no authority or power to modify or change the Constitution in any way under any circumstance. The only way to change the meaning of the Constitution is through the process of a Constitutional Amendment.

The Constitution predates the Supreme Court and all three branches of the federal government. It is the Constitution that established and empowered the Supreme Court and the Judicial Branch of government in the first place along with the other two branches of government.

The Constitution was written by citizens, for citizens, and was considered crystal clear and self-evident when it was adopted. Common sense and the Federalist Papers tells us that the states would not have agreed to abide by the Constitution unless the meaning was crystal clear at the time. Read the Federalist Papers which is a collection of the arguments over language and meaning of the Constitution during its construction.

The Constitution also functions somewhat like an instruction manual and employee handbook written by citizens (employer/BOSS) for all of our public servants (our employees) to follow including those elected and appointed public servants. Allowing the Supreme court to interpret the Constitution would be the equivalent of giving your employees the power to change the meaning of the employee handbook that you wrote. That would be beyond stupid for any employer.

The Constitution is not complicated. The meaning of some words have changed over the years but it is very easy to determine the meaning of the words at the time the Constitution was ratified. One example is the word 'regulate' which meant the opposite of how it is used today. Back then it meant "to make regular' as in to ensure no barriers, obstructions or restrictions. The reason to regulate commerce among the states was to prevent one state from erecting barriers on rivers or roads and charging a toll for goods in transit to another state.

The United States is a Constitutional Republic and NOT a representative democracy. Many people incorrectly refer to our system of government as a democracy. It is not. A democracy is akin to two wolves and a lamb deciding what to have for dinner. It is our U.S. Constitution that protects the minority from the tyranny of the majority.
The United States Supreme Court has the authority to interpret the Constitution.

Answer 3

The US Supreme Court has the final say on the interpretation of Federal Laws.

Answer 4

Judiciary, they interpret law

Answer 5

Legislative and Executive departments

Answer 6

A judge.