Missouri Revised Statutes Title XXXVII. Criminal Procedure § 544.472. Persons confined to jail, verification of lawful immigration status required

1. If verification of the nationality or lawful immigration status of any person who is charged and confined to jail for any period of time cannot be made from documents in the possession of the prisoner or after a reasonable effort on the part of the arresting agency to determine the nationality or immigration status of the person so confined, verification shall be made by the arresting agency within forty-eight hours through a query to the Law Enforcement Support Center (LESC) of the United States Department of Homeland Security or other office or agency designated for that purpose by the United States Department of Homeland Security. If it is determined that the prisoner is in the United States unlawfully, the arresting agency shall notify the United States Department of Homeland Security.

2. Nothing in this section shall be construed to deny any person bond or prevent a person from being released from confinement if such person is otherwise eligible for release.