"Legal justification" refers to a valid reason or explanation that is backed by laws or regulations. It means having a lawful basis or evidence to support a particular action, decision, or argument in a legal context. Full definition
Depending on your agreement, the cousin may have a legal right to possess the car, so make sure you have his approval or legal justification before acting on your own. (rocketlawyer.com)
There have been plenty of opportunities for this or, for that matter, any character to bring up the topic as a moral or legal justification for these actions. (markreviewsmovies.com)
Also, as the Commission submitted in the Achmea case, the conclusion of bilateral conventions on double taxation had an express legal justification in Article 293 of the EC Treaty: EU primary law required Member States to enter into negotiations in view of concluding bilateral conventions for the benefit of their nationals. (europeanlawblog.eu)