It looks obvious

Barton has written and lectured about how Rowling depicts the government and law in the Harry Potter books.

"When I read the fifth and sixth books, I noticed a real Libertarian bent. I thought, ‘Well, that’s interesting for children’s literature,’" Barton said.

Barton said he went back and read the first four books again, "and I saw the same messages were woven all the way through the series."

Barton wrote a paper entitled "Harry Potter and the Half-Crazed Bureaucracy" that was published in the Michigan Law Review in May 2006. The paper is being reprinted as a chapter in the book, "Harry Potter and the Law" (Carolina Press), due out this summer. He also has lectured on the topic at a "Power of Stories" seminar in Gloucester, England, in July 2005.

In "Harry Potter and the Half-Crazed Bureaucracy," Barton details the political messages he’s discovered in the Potter books:

"What would you think of a government that engaged in this list of tyrannical activities: tortured children for lying; designed its prison specifically to suck all life and hope out of the inmates; placed citizens in that prison without a hearing; ordered the death penalty without a trial; allowed the powerful, rich or famous to control policy; selectively prosecuted crimes (the powerful go unpunished and the unpopular face trumped-up charges); conducted criminal trials without defense counsel; used truth serum to force confessions; maintained constant surveillance over all citizens; offered no elections and no democratic lawmaking process; and controlled the press?

"You might assume that the above list is the work of some despotic central African nation, but it is actually the product of the Ministry of Magic, the magician’s government in J.K. Rowling’s Harry Potter series."

 Harry Potter war against the IRS