Start out with a White Nationalist + Minarchist Government as the foundation of building the structure of societal policy.
Where all laws are entirely based upon the ideas that the ownership of one's physical person and property gives the owner complete autonomy over them, and the legal requirement of being given the informed consent of the owner before others may physically interact with their physical person or property, a policy also known as the Non-Aggression Principle.
A theory of legal policy which removes all victim-less crimes (crimes that do not directly inflict force or coercion upon the person or physical property of others without their informed consent to the action), removes the concepts of intellectual property (copyright, trademark, patent, trade-secrets, etc.), contraband (property, occupations, or media, admittedly including such degenerate items such as drugs and weapons, prostitution and gambling, and leaked private pictures and child pornography, but it will also legalize leaked classified information, remove any excuses for censorship or privacy violation, and prohibit the practice of circumcision), and the concept of any limitations placed upon speech, expression, or assembly (including shouting "fire!" in a crowded theater).
In such a state, there are only three Branches of the government:
The Executive Branch, which is in charge of the representation of the country (President), the administration and coordination of other government agencies, and the running of elections.
The Judiciary Branch, which is in charge of the enforcement of the laws derived from the NAP (for example, police), the response to emergency situations (for example, firefighters), the protection of children (child services), and the collection of taxes from those eligible to pay them.
The last is the Defensive Branch, which is in charge of the protection of the nation against national threats and of national interests against the threats they face (for example, the military and intelligence agencies), the collection of census data on race and legal status, and the protection of national demographics through the control of the national borders and through the enforcement of the laws regarding immigration.
There is no Legislative Branch, Post too long. Click here to view the full text.