Question

what is the judicial branch responsible for

Answer 1

The Judicial Branch's job is interpret and administer the laws through means of determining whether the law or court case is constitutional or not. 

Hope this helps :)

Answer 2

The judicial branch is responsible for explaining the laws by the Legislative law, and imposed by the executive branch. In that branch there are the supreme courts, and other lower courts. They also determine if a law should be official or not.