The government has intensified its crackdown on illegal migrants after protests over the pressure illegal foreigners place on South Africa’s healthcare and labour systems. Business Day TV spoke to Aimée-Noël Mbiyozo, senior researcher at the Institute for Security Studies, about the economic contribution of legal immigrants, the rise in anti-immigrant sentiment and the latest research on migration and the economy.Would you like to comment on this article?Sign up (it's quick and free) or sign in now.Please read our Comment Policy before commenting.