If he's not a citizen of this country, and the crime happened in a different country - how can he be sued in our court system?
For criminal jurisdiction it is different from civil jurisdiction.
Also if the respondent leaves the jurisdiction, the trial will proceed anyway. If he respondent does not defend the case, it goes to the complainant by default. They do not have to extridite for a civil trial.
The fifth amendment does not apply to civil matters. Only criminal matters.
If a respondent refuses to answer a question, the answer is deemed to be anything the complainant desires.
"If he's not a citizen of this country, and the crime happened in a different country - how can he be sued in our court system?
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I agree with you.