The Rumphi East legislator, who went missing last week, re-appeared on Saturday near Kwacha Roundabout in Blantyre.
He claims he was dumped there by kidnappers who had been keeping him at an undisclosed location in Chileka.
His disappearance came a few days after a court battle between him and the Malawi Revenue Authority (MRA) which seized some of his vehicles, on allegations of tax evasion.
Speaking to capital FM, Chancellor College Law Professor Edge Kanyongolo said he was surprised at the fast pace police conducted their investigations.
He is of the view that, all parties involved be thoroughly scrutinized by the law enforcers.
National Police spokesperson James Kadadzera however reveals that investigations which they carried out following Kalua’s claim have givne them enough information to make a conclusion.
Kadadzera stated that Kalua will be questioned in order to find the exact reason why he staged such a scene.
Police have proven that Kalua looked healthy and did not show any signs that he’d been tortured by his abductors.
To add on that, that construction workers at Kalua’s plot where he was allegedly abducted from claim three months have elapsed since he was last at the site.
Responding to why they had made conclusions on the case quicker than usual, Kadadzera said the case was straight forward and whether he will be arrested or not will be determined when all facts had been gathered.
Kadadzera claims that Kalua’s case required little digging for the truth to be revealed, hence the quick conclusion of facts.
Kamlepo Kalua was leader of opposition Malawi Democratic Party from its inception in 1993 until 2012 when he joined People's Party.
He ran in the 1999 presidential election, where he finished third place with 1.4% of the national votes.