Warsaw Message — February 11, 1843…
“ It is the duty of the State of Illinois, to make it criminal in one of its citizens to aid, abet counsel, or advise, any person to commit a crime in her sister State,--any one violating the law would be amenable to the laws of Illinois, executed by its own tribunals. Those of Missouri could have no agency in his conviction and punishment. But if he shall go into Missouri, he owes obedience to her laws, and is liable before her courts, to be tried and punished for any crime he may commit there and a plea that he was a citizen of another State, would not avail him. ”
