What set of laws regulates political and social life in order to meet a need or accomplish a goal?

Answer: Public Policy

Explanation: Public Policy is a system of law that regulates, measures and fund priorities concerning a governmental entity.

Public policy is a law which includes specific legislation and more broadly defined provisions of constitutional or international law.

It regulates the social and political life of the people in order to accomplish a goal which is finding a solution to a problem or situation.

An example of a public policy is the law of taxation which states that the more money an individual makes the more tax an individual pay and vise versa.