Quick translation:
A passenger asked for an upgrade into business class, which was refused due to the flight being fully booked. The passenger then asked for a change of seat, complaining of the behaviour of the passenger next to her. The crew facilitated the seat change despite not noticing any unusual behaviour by the passenger's seat neighbour.
On landing some of the cabin crew were immediately arrested and brought to the airport police station where they remained for 6 hours. In the evening, at 22:30, police came to the crew hotel to serve court orders requiring the crew to appear in court in Buenos Aires at 08:30. The crew then learned of the passenger being related to both a magistrate and to a former Justice Vice-Minister (her father).
In court the next day the purser was separated from the rest of the crew and locked into a room measuring 1 square metre without a chair, food or water. No one was allowed to speak to him. He was guarded by 2 armed guards. After several hours he was finally allowed to contact a lawyer, which allowed him to formally complain about the conditions of his detention. Following this he was given a chair.
The crew were not informed what they had been charged with. The crew members who were in court since 08:00 were finally heard from 14:00, and the purser was finally heard around 20:00 and forced to speak Spanish which is not his native language. During the hearing the father of the passenger (ex-Minister) as well as his wife were sat next to the judge leading the interrogation, and the father then proceeded to interrogate the purser himself as well.
The crew was then released without explanation or apology. The crew returned to France, unable to perform their duty on the return flight. The SNPNC has tasked a lawyer to look into the matter.