Article 290

The court may, on its own motion, or on the application of the defendant of which notice has been given to the plaintiff, order the revocation and discharge of the certificate where:

in the course of the proceedings he fails without good cause to appear or is guilty of vexatious or improper conduct;

it appears that his means are such that he should not have been permitted or ought not to continue to sue as a pauper; or

he has entered into any agreement with respect to the subject matter of the suit under which any other person has obtained an interest in such subject matter.

Where the plaintiff’s certificate is revoked and discharged for the reasons set forth in the preceding sub-Article, the court shall order him, or any person added as co-plaintiff to the suit, to pay such fees as would have been payable if the plaintiff had not been permitted to sue as a pauper.