Porter, the former CEO of the McGill University Health Centre, was charged with fraud and money-laundering in connection with the contract to build the health centre's new superhospital.
Family and friends reported he died in custody in Panama last week, where he was fighting extradition.
The province's anti-corruption unit, UPAC, sent two investigators to the country to confirm his death.
Investigators will get access to Porter's body later this afternoon or this evening for a visual identification.
A spokesperson for UPAC says fingerprint and other forensic identification will not take place until Tuesday.
The spokesperson says no formal request to repatriate Porter's remains will be made until the identification is complete.
Porter also formerly served on the Security Intelligence Review Committee, the oversight body for Canada's spy agency, CSIS. He was named to the committee by Prime Minister Stephen Harper in 2008 and later elevated to chairperson before resigning in December 2011.