I’m not sure but this should be the final report of this particular incident;
https://www.sust.admin.ch/inhalte/AV...hte/2211_e.pdf
The only one in 2013 involving TAP and RYR...
From Skyguide regarding Just Culture
https://www.skyguide.ch/en/company/safety/
”As has been proven, providing trust and adequate protection for all the individuals involved in aviation (and other safety-relevant fields) encourages them to adopt and maintain the best possible attitude and approach to errors.
Anyone at skyguide who acts in their work to the best of their knowledge and belief need have no fear of disciplinary or legal proceedings as a result of their actions and activities. And everyone is free to report any problems openly and comprehensively – including errors of their own. At the same time, skyguide does not accept deliberate harm, gross negligence or willful damaging behavior.”
I assume they looked at this as “gross negligence”? Mistakes are human and everyone makes them, most are spotted and corrected. If management is, after an incident, deeming something as gross negligence and handing it to the courts that’s an unfortunate development and counterproductive to safety.
The report states that at the time of the incident the volume of traffic was “very high”.