I assume you're referring to these Ex parte cases?
Ex parte Milligan
https://en.wikipedia.org/wiki/Ex_parte_Milligan
Ex parte Vallandigham
https://en.wikipedia.org/wiki/Ex_parte_Vallandigham
EX PARTE BOLLMAN
https://caselaw.findlaw.com/us-supreme-court/8/75.html
Ex parte Merryman
https://en.wikipedia.org/wiki/Ex_parte_Merryman
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