Ms Onunga said since four critical witnesses live in Lamu, there is no point of the inquest being conducted in the capital city.
She added that nothing bars the experts from travelling to Lamu to testify.
The Director of Public Prosecutions has denied reports of a cover-up and indecisiveness in the case of deceased Keroche Breweries heiress Patricia Tecra Muigai.
Mr Noordin Haji, through State Counsel Evelyne Onunga, said he took the decision to transfer the inquest file from Nairobi to Lamu so as not to inconvenience principal witnesses.