De Waarheid, 7 Nov 1966, p. 3: report on the NVB's 20th-anniversary congress and gathering in Amsterdam. Chair Heiltje de Vos recalls NVB solidarity with Indonesia and proudly notes that first NVB chair Trees Sunito-Heyligers recently defended PKI leader Njono before the generals' military tribunal in Jakarta. Greeting
De Nieuwe Limburger, 5 Jan 1968 (Reuters): Jakarta police arrest Dutch lawyer Mrs Mr Trees Soenito-Heyligers, from Zwolle, on suspicion of membership of the banned communist scholars' association HSI. Two years earlier she had defended trade union leader Njono, sentenced to death for the 1965 coup.
De Waarheid, 5 Jan 1968, p. 1: telegram from the NVB executive to the Indonesian ambassador in The Hague protesting the arrest of lawyer Trees Sunito-Heyligers, recalling her anti-fascist work, her defence of Dutch soldiers who refused colonial war and her defence of union leader Njono, and demanding release of her and