In his book published four years after the Bruguière report, Guichaoua expressed his belief that the genocide had been a desperate reaction by the most extremist faction in the face of a military advance by the RPF. Guichaoua categorised the killings as a crime against humanity committed by a government against a part of its population. Guichaoua wrote the preface for the book by Abdul Ruzibiza, the star witness used by Judge Bruguière, and indeed had first introduced the witness to the judge and had persuaded Ruzibiza to write a book.
