Non liquet

A lacuna describes every specific matter about which no law exists, but a body of public, judicial or academic opinion believes it should, to address a particular issue (often described as "unregulated" or "wholly inadequately regulated" activities or areas). A loophole, where properly defined by contrast, denotes that a set of laws addressing a certain issue exists, but can be circumvented (or is being exploited) due to a technical defect in that law.

In short, the wording will be interpreted if dictionaries and grammar allow so as to plug the gaps in the law as the state instrument (or ruling) intended.

All cases which establish a new rule or exception fill lacunae in the existing law.

Moral principles and norms are broader than the intended reach of any system of laws (jurisdiction) which permits human autonomy and diversity of thinking or action.

If this one-to-one relationship is accepted, this defines a definitive master set from which the subset, true legal lacunae (as opposed to semantic omissions) are all contained.