[3][4][5] Hunko was born in Munich and grew up in Aachen,[6] where he graduated from the Kaiser-Karls-Gymnasium in 1983 and did his alternative civilian service with the Federation of Welfare Associations in Germany (Deutscher Paritätischer Wohlfahrtsverband).
For the Parliamentary Assembly of the Council of Europe, he drafted a report on this subject entitled "Austerity measures – a danger for democracy and social rights".
[11][12] An parliamentary inquiry by Hunko to the German government in 2016 revealed the importance of Ramstein Air Base for U.S. drone warfare.
[13] Hunko is also one of eight signatories of a complaint against the German government for "aiding and abetting the murder" of the Iranian General Qasem Soleimani, an airport employee and four other people.
Hunko was a member of numerous Election Observation Missions (EOM) of the Parliamentary Assembly of the Council of Europe (PACE) and the OSCE.
[34] As a reaction to critical reports Hunko and his PACE colleague Stefan Schennach from Austria made about the election process in east Turkey,[35] he was accused by the Turkish president Recep Tayyip Erdoğan and his Minister of Foreign Affairs Mevlüt Çavuşoğlu to be a supporter of the PKK, which is classified as a terrorist organization by the US, NATO, and Turkey but not the UN or PACE.