Zimbabwe’s anti-corruption agency is investigating whether the former First Lady Grace Mugabe fraudulently obtained a doctorate.
Lecturers at the University of Zimbabwe filed a petition last week asking to investigate.
She was awarded the PhD just months after enrolling at university in 2014 even though doctorates typically require years of full-time research.
Mrs Mugabe has previously defended her academic record.
In September, she told a governing party rally that she had earned her PhD despite her detractors’ scepticism.
Mrs Mugabe was awarded a PhD by the University of Zimbabwe.
But lecturers at the same institution are behind the petition to investigate how she obtained the qualification.
Zimbabwe Independent, a privately owned newspaper, quotes the academics’ petition as saying they had no knowledge of her 2014 graduation until they heard media reports:
« This was a shock to many members of the department as most members never [saw] or heard about the proposal, progress reports, thesis examiners and outcome of such a study by the candidate. »
Local media report that Mrs Mugabe’s doctoral thesis has not been made public, breaking with usual practice.
Mrs Mugabe was personally capped by her husband and then-president Robert Mugabe, who was also the chancellor of the University of Zimbabwe.
She had hoped to replace her husband as leader, but antagonised a faction of the ruling Zanu-PF party which led to a fallout within the party.
The military then stepped in and forced President Mugabe to end his 37-year rule and installed his former deputy, Emmerson Mnangagwa, as president.