Bawa stated this on Thursday while speaking with State House reporters at the Presidential Villa, Abuja.
Recall that Kalu had been convicted up to the Court of Appeal before the Supreme Court set him free on technical grounds.
Bawa also said the EFCC was set to begin prosecution of 800 new corruption cases.
He revealed that since his assumption, a number of recoveries have been made including N6 billion, $161 million, £13,000 pounds, €1,730 among others.
Internet fraudsters numbering 1,502 have also been apprehended between January to June 2021 and efforts are underway to file about 800 of them.
A hundred cases will be filed in court, he said.