[1] He signed the promulgation order of the 1962 Constitution of the Kingdom of Burundi along with Mwami Mwambutsa IV and Muhirwa.
[1] In late February 1963 Hutu political leader Paul Mirerekano was arrested, but Nuwinkware ordered him released on 1 March.
[6] The Ministry of Justice also published a pamphlet in tribute to Rwagasore which he reportedly authored.
Ngendandumwe was dismissed in June 1964[8] and replaced by Albin Nyamoya, who retained Nuwinkware in the same portfolio.
In January 1965 Ngendandumwe formed a new government with Nuwinkware as Minister of Justice, but was shortly thereafter killed.