Canon 1110

1. In a matter which concerns private individuals only, a judge

can proceed only at the request of a party; once a case has been

legitimately introduced, however, a judge can and must proceed,

even ex officio, in penal cases and in other cases which involve

the public good of the Church or the salvation of souls. 2.

Furthermore, a judge can supply for the negligence of parties in

furnishing proofs or in placing exceptions as often as it is

judged necessary in order to avoid a seriously unjust sentence,

with due regard for can. 1283.