La. Code Civ. Proc. art. 1071
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
A party by petition may assert as a cross-claim a demand against a co-party arising out of the transaction or occurrence that is the subject matter either of the original action or a reconventional demand or relating to any property that is the subject matter of the original action. The cross-claim may include a demand that the party against whom it is asserted is or may be liable to the cross-claimant for all or part of the demand asserted in the action against the cross-claimant.
La. C.P. § 1071