“(1) The Solicitor-General may, with the written consent of the Attorney-General, in writing delegate to a Deputy Solicitor-General, any of the functions or duties imposed, or powers conferred, on the Attorney-General.
“(2) The Solicitor-General may in writing delegate to a Deputy Solicitor-General any of the functions or duties imposed, or powers conferred, on the Solicitor-General, except for the power to delegate conferred by this subsection.
“(5) The fact that a Deputy Solicitor-General performs a function or duty or exercises a power is, in the absence of proof to the contrary, sufficient evidence of his or her authority to do so.”