What happens when a crime is committed in a local jurisdiction and the suspect flees to Mexico? If the suspect is a U.S. citizen, Mexico will most likely return the suspect to the U.S. under the Extradition Treaty between both nations. However, if the suspect is a Mexican citizen, Mexico will not allow extradition except under unusual circumstances. Acquaints viewers with the legal options available to U.S. jurisdictions under Article IV and the resources available in California for successful foreign prosecutions.