The Canadian Bar Review
THE CANADIAN BAR REVIEW VOL . XXX OCTOBER 1952 NO . 8 The Rule Against the Use of Legislative History: "Canon of Construction or Counsel Of Caution"? D. G . KILGOUR* . Toronto I. Introduction The question whether the rule against the use of legislative his- tory is a "canon of construction or counsel of caution" I is only one', but perhaps the least explored, 2 aspect of the general problem of admissibility of extrinsic evidence in the interpretation of written documents. This general problem, in turn, is only one, but perhaps the most important,3 aspect of interpretation at large, which is a problem of general jurisprudence. In fact, juris- prudence itself has been defined as the art of interpreting laws.4 Interpretation or construction of a statute, as of any written document, is an exercise in the ascertainment of meaning. On principle, therefore; everything which is logically relevant should be admissible. Since a statute is an instrument of government * D. G. Kilgour, B .A. (Tor.), LL.M. (Harv.), of the Ontario Bar . Assist- ant Professor, School of Law, University of Toronto. 1 Per Bowen L. J. in Re Jodrell (1890),, L.R. 44 Ch.D. 590, at p. 614. 2 Lauterpacht, Some Observations on Preparatory Work in the Interpreta- tion of Treaties (1935), 48 Harv. L. Rev. 549, at p. 558. 3 Frankfurter, Some Reflections on the Reading of Statutes (1947), 47 Col. L. Rev. 527, at p. 529 : "I should say that the troublesome phase of construction is the determination of the extent to which extraneous docu- mentation and external circumstances may be allowed to infiltrate the text on, ihé theory that they were part of it, written in ink discernable to the judicial eye" .
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