The invitation was part of investigations into the $15m frozen in four company accounts, which Patience Jonathan had laid claim to.
Sources in the EFCC said the letter had been written to the DSS, requesting that the officials be allowed to honour the anti-graft agency’s invitation.
A detective who confided in newsmen said that the Commission had evidence that the DSS officials had, on several occasions, deposited money into some of the accounts in Skye Bank between 2013 and 2015.
The source said, “The $15m, which we have frozen in the four company accounts was not paid into the accounts at once. The money was paid into the accounts over a two-year period.