Supreme Court judge, Patrick Brooks, has granted an order for former Scotiabank boss William Bill Clarke to inspect and search the database of the bank.
This follows allegations by Mr Clarke that the banks IP addresses were used to create a fake Facebook profile that defamed him.
Mr Clarke has been in a legal dispute with Scotia Bank over his retirement package.
That dispute is now heading to the Privy Council.
In November, the Court of Appeal gave leave to the bank to take the matter to the UK-based court.
The bank had appealed the ruling of the local appellate court on October two.
The Appeal Court had granted Clarke the declaration he was seeking that there was an agreement for the issue involving his retirement to go to arbitration.
Supreme Court Judge, Horace Marsh, had turned down Clarke's application on the grounds that there was no agreement for the issue to go to arbitration.
However, Clarke took the matter to the Court of Appeal and was successful.
The bank was ordered to pay Clarke's legal costs for the hearing in both the Supreme Court and at the Court of Appeal.
The court ruled that Clarke should remain in the house and continue to keep the two company cars which the bank had assigned to him, until the dispute is settled by arbitration.