Ndala said in a statement on Tuesday that the questioning will be done virtually “As one way of observing COVID-19 prevention guidelines.

About 1.2 million bags of cement worth MK5 billion are alleged to have been imported duty free using Mutharika’s TPIN.

Last year, ACB arrested Mutharika’s former bodyguard, Norman Chisale, former Chief of Staff for State Residences, Peter Mukhito, former Malawi Revenue Authority (MRA)  official, Rosa Mbilizi and businessman Shafee Chunala over their involvement in the saga.

Last year ACB froze bank accounts of Mutharika, former First Lady Gertrude Mutharika and Chisale in relation to the case.