Detlev Rein, Dr. jur. (Bonn), is an independent researcher in the field of minority protection. From 2000 until 2013, he was Head of Division for national minorities and regional languages in Germany, and European policy on minorities at the German Ministry of the Interior. He was a member of CAHROM, and MGS-ROM, member, Chair (2005–2006), and Vice-Chair of DH-MIN, and Head of the German National Contact Point for the Implementation of National Roma Strategies (EU). From 2016 until 2020, he served his first term as member of the Advisory Committee. He is co-editor and author of commentaries on the Framework Convention and the Language Charter. He publishes monographs and articles especially on legal issues relating to national minorities.