Ok. I guess I didn’t understand what a natural marriage was. I guess it carries the same ideas of a sacramental marriage, just without receiving sacaraments due to her not being baptized.
I’m just trying to find a solution to satisfy the issue of her safety.
Here are the canons concerning which tribunals can handle the case. Perhaps if they married, or he lives, in another location from where she is now the petition could be handled there, further obscuring her location:
Can. 1673 In cases concerning the nullity of marriage which are not reserved to the Apostolic See, the following are competent:
1/ the tribunal of the place in which the marriage was celebrated;
2/ the tribunal of the place in which the respondent has a domicile or quasi-domicile;
3/ the tribunal of the place in which the petitioner has a domicile, provided that both parties live in the territory of the same conference of bishops and the judicial vicar of the domicile of the respondent gives consent after he has heard the respondent;
4/ the tribunal of the place in which in fact most of the proofs must be collected, provided that consent is given by the judicial vicar of the domicile of the respondent, who is first to ask if the respondent has any exception to make.
Again, I urge you to talk to the diocesan tribunal office. I promise you, they have seen abusive cases before in which there had to be care taken to ensure the petitioner’s safety. They have procedures.