"My flabber was completely gasted." - Rating Pending
Q:

Dear 100 Hour Board,

When is extradition possible/required?

- extradite

A: Dear Extradite,

Extradition--for those of you unfamiliar with the finer aspects of skirting the law--is "the surrender of an accused or convicted person by one state or country to another (usually under the provisions of a statute or treaty)."
Extradition depends on treaties. The United States, for instance, has an extradition treaty with Mexico. If someone commits a crime (murder, for instance) in the US and flees to Mexico, but the Mexican police pick him up, he can be shipped back to the States for trial and imprisonment.
If the United States does NOT have a treaty with another country (several in South America, for instance), or the treaty doesn't cover certain crimes, the person is pretty much off scot free.
So choose carefully where you flee.

-- The Jackal