This article studies the mixed movement of Somalis and Ethiopians to Kenya. It examines the modalities related to the smuggling of migrants and discusses economic exploitation of migrants by organised criminal networks, including corrupt Kenyan border officials. The criminalisation of migrants who are illegally present in Kenya is assessed against the background of the international legal framework, mainly the Protocol against the Smuggling of Migrants by Land, Sea and Air and the United Nations Convention against Transnational Organised Crime. The article analyses Kenya’s revised immigration law and other recently enacted laws to address economic criminality. Finally, it recommends a set of national measures necessary to enhance legal protection for migrants within the mixed movement and stem the flow southwards through the eastern migration corridor.