The Extradition Clause in the US Constitution requires states, upon demand of another state, to deliver a fugitive from justice who has committed a "treason, felony or other crime" to the state from which the fugitive has fled. International warrants: Extradition can be initiated based on international arrest warrants issued https://letsbookmarkit.com/story18497435/poco-conosciuto-fatti-circa-countries-with-no-us-extradition