West virginia constitution
Article I: relations to the u.S. Government
Section 2

The government of the United States is a government of enumerated powers, and all powers not delegated to it, nor inhibited to the states, are reserved to the states or to the people thereof. Among the powers so reserved to the states is the exclusive regulation of their own internal government and police; and it is the high and solemn duty of the several departments of government, created by this constitution, to guard and protect the people of this state from all encroachments upon the rights so reserved.