Canon 1363

1. When the libellus introducing the suit has been accepted,

the presiding judge or the ponens is to proceed to the communication of the decree of citation according to the norms of can.

1191. 2. Unless either party has petitioned for a session on

the joinder of the issues (contestatio litis), when fifteen days

have passed after such a communication, the presiding judge or

the ponens is to determine the formulation of the doubt or doubts

within ten days by a decree ex officio and notify the parties.

3. The formulation of the doubt not only is to ask whether

there is proof of nullity of marriage in the case, but it also

must determine on what ground or grounds the validity of the marriage is to be challenged. 4. Ten days after the communication

of the decree, the presiding judge or the ponens is to arrange

for the instruction of the case by a new decree if the parties

were not opposed.