Should that "other side" of the story be correct.
Then many of the previous posters are what they claimed the Argentinian court/police system to be.
I actually think that thing like this happen very often but the Captain will back the crew without all the facts at times and the crew are not being that good to some pax - but they hold the power to bet the backing of the Captain on an unruly arrest charge on landing.
This tread seems to prove that theory.