The events date back to an incident at El Prat airport, where officers interacted with Kris, a Flemish citizen who spoke Catalan despite not being fluent in Spanish. According to defense lawyer Laia Homs, the judicial system shifted the focus onto the victim's use of the language rather than the police conduct.

Judge Mercedes Armas presided over the hearing, choosing to ask questions in Spanish and using an official interpreter. The session was marked by linguistic tension, particularly from the Prosecutor's Office, which conducted a sharp interrogation of the complainant.

One of the accused officers, a corporal with 17 years of service in Catalonia, stated he does not understand Catalan and referred to local citizens as natives. The State Attorney's Office represented the officers, using Catalan during the proceedings.