what does the constitution say about a fugitive from justice (extradition)
Article Four of the United States Constitution Clause Two requires that fugitives from justice may be extradited on the demand of executive authority of the state from which they flee. The Supreme Court has held that it is not compulsory for the fugitive to have fled after an indictment was issued, but only that the fugitive fled after having committed the crime. The Constitution provides for the extradition of fugitives who have committed "treason, felony or other crime." That phrase incorporates all acts prohibited by the laws of a state, including misdemeanors and small, or petty, offenses.
Article Three of the United States Constitution Section 2 delineates federal judicial power, and brings that power into execution by conferring original jurisdiction and also appellate jurisdiction upon the Supreme Court. Additionally, this section requires trial by jury in all criminal cases, except impeachment cases.