The main purpose of the Department of State (also known as the State Department) is "<span>c. to serve the President as an advising body on issues of foreign state relations," since this would be impossible for the President to do by himself. </span>
Taking into account this situation: "Mr. Wiegold had worked in the same place for 36 years and only had one raise. He felt like the boss owed him something, so one day he took a computer home and kept it. When the boss found out he had him arrested. Mr. Wiegold demanded a trial because he said he was innocent. But the boss and the police said he didn't get a trial because they already caught him with the stolen computer, he was guilty."
We can say that the answer is: 6th amendment, because is the one that fits well.
Hope this helps.