You need to know what happens before the Attorney-General gives advice on appointing an acting Judge. The Attorney-General must get a certificate from the Chief Justice first. This certificate says the appointment is necessary for the court to work properly. You should know that the certificate must be signed by the Chief Justice. The Attorney-General needs this certificate before advising the Governor-General about the appointment under sections 111 to 114. The Chief Justice's certificate is an important step in this process. The Attorney-General cannot give advice without the certificate. This rule helps make sure the court has the judges it needs to work properly. The Chief Justice's signature on the certificate confirms that the appointment is necessary.