African Youth in Victoria, the Facts, page-77

Australian born people make up 64.9% of the population living in the Victoria yet make up 72.2% of the unique offenders in Victoria (2016 numbers, not sure of more recent figures)

Sudanese make up 0.1% of the population yet are 1% of the unique offenders I believe so the proportion is a lot worse, but the statement scitty made is still correct.