The South African Revenue Service (SARS) is intensifying its crackdown on illegal diesel blending operations. In recent raids on depots in Limpopo and Gauteng, SARS suspects paraffin is being mixed with diesel on a larger scale. The tax agency believes it has identified a key player in the multibillion-rand illegal fuel trade. It says these operations mark a significant move in SARS' ongoing efforts to tackle tax evasion and illicit fuel trading, which undermines the country's economy. Thziwihangwi Nemanashe spoke to South African Revenue Service Commissioner, Edward Kieswetter about the crackdown and blended fuel consumption