They both are required to apply and enforce the laws.
The differences between the two are in the jurisdictions. The jurisdiction on federal court is not as elaborate as state courts.
Laissez-Faire economics is when the government doesn't get involved in the economic affairs of a nation.
A free enterprise system is an economic system where a government places very few restrictions on the types of business activities or ownership in which citizens participate. This type of system is often referred to by others as a free market, or capitalism.
During the colonial period, the British Parliament used the policy of mercantilism to extract wealth from the colonies, since many of the colonies' main exports such as tobacco were used for trade in other nations.