1.Before giving testimony, the witness shall disclose any relationship with the parties to the action or any interest therein. 2.A person who uses testimony to ward off damage or realize an interest shall not be admitted. Moreover, the testimony given by ascendants for descendants, descendants for ascendants, one spouse for the other spouse, even after their separation, or custodians or guardians for the person under custodianship or guardianship shall not be admitted. 3.Employees, servants and persons in charge of a public service shall not, even after the termination of their employment, testify about information which may not be disclosed as authorized by the competent authority and may come to their knowledge during their employment, unless the competent authority authorizes them to testify at the request of the court or at the request of a litigant.
Interpretation and application must be checked against the official text and current version.