A former member of the SA Secret Service and his associate reveal their role in conspiracy.
One of the key witnesses is a known information peddler with links to intelligence agencies.
President Mutharika faces further protests and a loss of desperately needed aid if he fails to address Malawi’s problems, civil groups and the US say.
The US has withheld $350-million in funding to Malawi following the death of 19 people during two days of public protests last week.
Collusion among multinational cartels blamed for foreign exchange shortages.
Malawi journalists were beaten by police in churches and hospitals in Lilongwe, and were blamed for the demonstrations that swept the country last week.