For several occasions, Kalua being a vice chairman of public accounts committee in Malawi parliament has been vocal and accused Peter Mutharika's government of shielding seven unnamed corrupt cabinet ministers.
Kalua spent almost the whole 2016-2017 sessions of parliament threatening that he will name and shame the seven corrupt cabinet ministers.
However, on 27 April 2017, the Malawi Revenue Authority (MRA) officers accompanied by armed police raided the houses of Kalua and his son Penjani where they seized his Mercedes Benz and a Toyota V8 belonging to the son on allegations that they were smuggled into Malawi.
A day later, the police went back to Kalua’s house with their own search warrant and towed a grounded Jeep belonging to the MP on allegations that it was stolen-.
He has criticized the naming of a road connecting Blantyre to Mozambique after Zimbabwean President Robert Mugabe, calling him "an outright dictator".