The EFCC recently has arrested a host of politicians and businessmen in the country in connection to a $2bn arms deal probe allegedly spearheaded by ex NSA Sambo Dasuki.

According to a report from The Nation, many suspects had admitted collecting huge sums of money from the Office of the National Security Adviser (ONSA) when Dasuki was in charge.

Also, a security officer said investigators are going along these lines of questioning and reasoning:

• Were the funds budgeted for? If not, what informed extra-budgetary expenses?
• How much was actually voted for arms procurement?
• How were the funds sourced?
• Who or which agency awarded all the contracts?
• Who were the contractors?
• Was there any evidence of delivery of equipment?
• What will make any Minister to run to ONSA for funds?

“These are the areas our detectives have been mandated to look at," the official said.