Given that good administration therefore first and foremost rests on respect for the rule of law, it follows that the Ombudsman, in fulfilling his mandate, is able, and indeed obliged, to review the legality of the behaviour of the public bodies under his purview. With this in mind, Parliament's suggestion that the Ombudsman cannot make a finding of maladministration when his interpretation of the relevant legal rules is not shared by the Union institution concerned, is therefore clearly incorrect.