Which type of law focuses mostly on the rights of individuals in relation to both federal and state governments?

constitutional law

Explanation:

Constitutional law focuses on the rights of individuals in relation to both federal and state governments. Constitutional law also deals with relationships among states, the states and the federal government, and the three branches of the federal government. The Supreme Court has played a crucial role in interpreting the Constitution. Consequently, study of Constitutional Law focuses heavily on Supreme Court rulings.

Constitutional law or case law