The Office of the Contractor General (OCG) has commenced hearings into the contract awarded to O'Brien's International Car Sales and Rentals for the purchase of used motor vehicles for the Jamaica Constabulary Force.
The hearings started last week.
Contractor General Dirk Harrison confirmed on Wednesday morning that Dianne McIntosh, Permanent Secretary in the Ministry of National Security, was summoned to the OCG last week to answer questions.
The operator of O'Brien's International also appeared before the Contractor General.
The OCG is investigating the $426 million contract after O'Brien's International failed to deliver the vehicles under the contract with the Ministry of National Security.
The company was contracted to deliver 200 vehicles, of which only 30 have been delivered with another 66 on the wharf.
The Government has since called the $42 million performance bond of O'Brien's.
National Security Minister Robert Montague told the House of Representatives on Tuesday that further legal advice is being sought on how to proceed in the matter.