> To be opposed to the state is then not necessarily to be opposed to services that have often been linked with it; to be opposed to the state does not necessarily imply that we must be opposed to police protection, courts, arbitration, the minting of money, postal service, or roads and highways. Some anarchists have indeed been opposed to police and to all physical coercion in defense of person and property, but this is not inherent in and is fundamentally irrelevant to the anarchist position, which is precisely marked by opposition to all physical coercion invasive of, or aggressing against, person and property.
> An important point to remember is that any society, be it statist or anarchist, has to have some way of resolving disputes that will gain a majority consensus in society. There would be no need for courts or arbitrators if everyone were omniscient and knew instantaneously which persons were guilty of any given crime or violation of contract. Since none of us is omniscient, there has to be some method of deciding who is the criminal or lawbreaker which will gain legitimacy; in short, whose decision will be accepted by the great majority of the public.
(Note: not defending this stuff, just pointing it out for sake of discussion).
Elsewhere someone pointed out the book "Anarchy, State, and Utopia" which has a better overview of what libertarians believe in. Which is a "night-watchman" state, a minimalist government which includes courts, police, and border control.