The parties shall be questioned in each other’s presence unless circumstances require them to be questioned separately. They must be confronted if one of the parties so requests.
Where the appearance of only one of the parties has been ordered, that party shall be questioned in the presence of the other unless the circumstances require that it be questioned immediately or out of his presence, subject to the right of the absent party to have immediate knowledge of the statements of the party heard.
The absence of one party shall not prevent the other from being heard.