Police Tuesday morning quizzed former tourism permanent secretary Peter Mumba.
Mumba appeared at the former task force on corruption offices.
Mumba who arrived at 11:00hours only left the former at 12:40 hours.
He told ZNBC news that he was at the former task force premises to answer what he termed, matters of the nation.
Mumba says it is too early to talk about the reasons why he was being summoned.
He however says he is happy with the way the investigation went.