Would it be that different in the U.S?
If a Balinese was stopped at a US airport carrying 10lbs of pot the experience would have similarly horrific, at least initially. A suspect in the US would be arrested and since he would have no ties to the community would likely be held without bond. The evidence and investigation shown in the movie would be of equal quality than usually found in the US for this kind of case.
Of course, for this weight in marijuana, a first time offender in the US could at some point prior to trial plea bargain her case down to probation in most states. But many states do have 3-5 year mandatory minimum sentences for trafficking marijuana in comparable amounts.