La. Civ. Code art. 390
Current with operative changes from the 2024 Third Special Legislative Session
A court may order the limited interdiction of a natural person of the age of majority, or an emancipated minor, who due to an infirmity is unable consistently to make reasoned decisions regarding the care of his person or property, or any aspect of either, or to communicate those decisions, and whose interests cannot be protected by less restrictive means.
La. C.C. § 390