You need to be able to have rock hard evidence to put a criminal away depending on the jury and what they think but in most cases you need evidence that can for sure put them away.
Habeas corpus is the answer
Its could be:
a red and white sign like a "STOP" sign to tell you a direction to follow
or a "WRONG WAY" sign if you're going the wrong way
a regulatory sign tells you directions that you have to follow
Are there options? Infrastructure would be a great fit considering the fact that it sits on the jurisdiction of both governments.
the principle that all people and institutions are subject to and accountable to law that is fairly applied and enforced; the principle of government by law.