Interpretation of Law

Interpretation.—Though laws are carefully framed as to language, doubts about their meaning will often arise—in ordinary cases, because of lack of understanding or changes of conditions, and in extraordinary cases, because from the circumstances the law seems inapplicable. Hence the need of explaining the law, which is done in ordinary cases by interpretation, in extraordinary cases by epieikeia (see 411 sqq.).

Interpretation is a genuine explanation of the law, that is, one that states the meaning of the words of the law according to the intention the lawgiver had in mind when he chose them. It is of various kinds.

(a) According to the author from whom it proceeds, interpretation is authentic, if it comes from the lawgiver himself or from another authorized by him; it is usual, if it comes from common usage (i.e., from the manner in which the law is customarily observed); it is doctrinal, if it is made by learned men according to the rules of correct exegesis.

(b) According to the effect, interpretation is declarative, if it clears up what was obscure in the law; it is supplementary, if it extends or limits the law, by adding to or subtracting from the cases included under it.

(c) According to the manner in which it is made, interpretation is strict or wide, Strict interpretation gives to a word of law that least inclusive and most proper signification it bears (e.g., it understands “son” to stand for son by birth). Wide interpretation gives to a word a more inclusive and less proper signification (e.g., it understands “son” to stand for son by birth or by adoption).