Whenever any amount has been paid by the Government on account of any person who is dead, that amount may be recovered by the Government from the estate of that person; and whenever such amount has been paid on recount of a person who has been adjudged bankrupt, the amount so paid shall be considered to be a debt due from the estate of the bankrupt, and a certificate signed by the Secretary to the Treasury certifying the fact of the payment by the Government and delivered to the Official Receiver shall be sufficient proof of the debt; and whenever any amount has been paid by the Government on account of any person who has absconded or who cannot be found within the jurisdiction of the High Court and has left any real or personal estate within Uganda, the High Court may, upon the application of the Registrar and upon the production of a certificate signed by the Secretary to the Treasury certifying that the amount has been paid by the Government, give judgment for the Registrar against that person forthwith for the amount so paid together with the costs of the application, and execution may issue immediately; and if that person has not left real or personal estate within Uganda sufficient to satisfy the amount for which execution has been issued as aforesaid, the Government may recover that amount or the unrecovered balance of it from the person at any time thereafter.