a 2004 study by the centre for the study Education_teaching of violence and reconciliation ( unk ) of attitudes amongst police officers in the johannesburg area found Know that 87 % of respondents believed that most undocumented immigrants in johannesburg are involved Participation in crime , despite there being no statistical evidence to substantiate the perception .

a 2004 study by the centre for the study Education_teaching of violence and reconciliation ( unk ) of attitudes amongst police officers in the johannesburg area found Know that 87 % of respondents believed that most undocumented immigrants in johannesburg are involved Participation in crime , despite there being no statistical evidence to substantiate the perception .