You've completely missed the point. We as a society believe people have a presupposition of innocence. The state must prove guilt. You don't get throw into jail to await trial forever if you happen to be wandering the wrong part of town - and you shouldn't if you're wandering the wrong part of the globe. This is literally the bare minimum standard to which we hold ourselves.

And for very good reason. The states power should always be checked, at home or abroad.

This is especially important as these days wars don't end.