The National Drug Law Enforcement Agency Tuesday interrogated the detained DCP Abba Kyari, the suspended commander of the Intelligence Response Team at the Force Intelligence Bureau, over alleged drug dealings.
Others quizzed were the four officers arrested alongside Kyari.
The NDLEA, it was learnt, was planning to conclude the interrogations this week.
NDLEA spokesman, Femi Babafemi, when contacted on the next line of action, said: “Investigation is ongoing.
“We gave an assurance in our statement on Monday that no stone will be left unturned to ensure that all suspects already in custody and those that may still be indicted in the course of the investigation will face the full wrought of the law at the end of the ongoing probe and that still stands.
“If anyone has concrete information or evidence, our doors are open.”
Babafemi said there would be no cover-up for anyone involved in the alleged drug dealing.
He urged Nigerians to be patient on the ongoing investigation.