Head of the Civil Service of the Federation, Winifred Oyo-Ita, has returned to work after President Muhammadu Buhari rejected her request for early retirement.
Oyo-Ita returned to her desk on Thursday after participating in the swearing-in ceremony of ministers on Wednesday.
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The HoS had sent in her letter on Sunday following pressure from her family.
The Economic and Financial Crimes Commission (EFCC) is investigating her for alleged involvement in a N3 billion contract scam.
Oyo-Ita was quizzed for four days beginning from August 8 and kept in EFCC custody.
She was interrogated over abuse of duty tour allowance, money laundering and stealing of government funds.
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The EFCC said the N3 billion linked personally to Oyo-Ita allegedly came in through proxy companies.
The money was discovered during a probe of a former minister under who she served as permanent secretary.
Oyo-Ita has denied culpability in the alleged scam.
The embattled Oyo-Ita was absent on Monday and Tuesday at the presidential retreat for ministers-designate, federal permanent secretaries and top government functionaries held at the State House Conference Centre in Abuja.
