14th Amendment Bounty Hunter 

All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the state wherein they reside. No state shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any state deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.
 A court must have jurisdiction to enter a valid, enforceable judgment on a claim. Where jurisdiction is lacking, litigants, through various procedural mechanisms, may retroactively challenge the validity of a judgment. They dont have CRIMINAL JURISDICTION so Challenge it. 
 Subject-matter jurisdiction is the requirement that a given court have power to hear the specific kind of claim that is brought to that court. The court may dismiss a case sua sponte (on its own) for lack of subject-matter jurisdiction.