The Ethics and Anti-Corruption Commission said it could not trace the document when investigating claims that Mr Mohamed had used forged certificate to secure employment at the Board.
His CV shows he graduated from Egerton University with a Bachelor of Science in Biochemistry in 2009 prior to his appointment at the Board in November 2014.
The EACC in a gazette notice said it could not prosecute Mr Mohamed because the missing file derailed investigations, but added that there is enough grounds for administrative action, including his sacking.
“During investigations the Commission sought to obtain the forged degree certificate that the CEO had presented purporting to have graduated but the same was not traced. It was suspected that the same may have been removed from his personal file and concealed,” said the EACC in the Friday notice.
In 2015, Egerton University Registrar of academic affairs, Prof SFO Owido said Mr Mohamed was discontinued on academic grounds in his third year of study by the Senate on August 26, 2010.
Critics have argued that there was no evidence that the NGO boss underwent vetting prior to his appointment to the position. The EACC prepared and forwarded its report to the Director of Public Prosecutions (DPP), recommending administrative action against Mr Mohamed.
“The EACC on December 16 2016 recommended to the DPP that Administrative action against the CEO.... But that on 4th January, 2017, the DPP recommended that further investigations be conducted,” said EACC.