He joined the Order of Friars Minor Capuchin in 1962 and was ordained a priest on 4 July 1967.

After specialized studies in canon law in Munich and Fribourg, he obtained his doctorate in theology in 1976.

The appointment was announced through a decree and signed by Cardinal Tagle, The Prefect of the Congregation for the Evangelization of Peoples.

[4] On 23 January 2023, Pope Francis appointed[5] Aldo Berardi, OSST as the Apostolic Vicar of Northern Arabia succeeding Camillo Ballin, MCCJ, who passed away on April 12, 2020.

[6] On 1 May 2022, Pope Francis[7] accepted the resignation of Hinder and appointed Paulo Martinelli OFMCap to take his place as the Vicar Apostolic of Southern Arabia.