 During his detention he was tortured by Jeffrey Benzien — an event which Benzien later re-enacted before the Truth and Reconciliation Commission while Yengeni watched, and where Benzien received amnesty.After President FW de Klerk unbanned the ANC in 1990, eight of Yengeni's co-accused were acquitted.Yengeni and the other five were released a year later but remained on trial for a number of months thereafter.