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very real risk if the adversary would have supplemented the record had it known another issue was
before the court”.177 Or the issue is such that it would be advantageous for the appeal court to have
the benefit of the trial judge’s opinion.178
[152] In short, “[a]n appeal court should not hear a new issue on appeal unless it is satisfied that
the factual record needed to resolve the new issue exists and no other party is prejudiced”.179
[153] We are satisfied, based on the arguments of both the appellant and the respondent, that the
record for the new issues the appellant asks us to consider is incomplete. Counsel for the appellant
expressly states that “further findings of fact are necessary to arrive at the proper measure of
[2003] 2 S.C.R. xi (note) (“The party [seeking to raise a new issue] must prove beyond a reasonable doubt that all the
facts relevant to the new argument are before the appellate court, and no satisfactory answer to the new argument
could have been given by the opposing parties if the argument had been raised at trial”); Connecticut Fire Ins. Co. v.
Kavanagh, [1892] A.C. 473, 480 (P.C.) (Que.) per Lord Watson (“When a question of law is raised for the first time
in a court of last resort, upon the construction of a document, or upon facts either admitted or proved beyond
controversy, it is not only competent but expedient, in the interests of justice, to entertain the plea. The expediency of
adopting that course may be doubted, when the plea cannot be disposed of without deciding nice questions of fact, in
considering which the Court of ultimate review is placed in a much less advantageous position than the Courts
below”); Owners of the Ship “Tasmania” v. Smith, 15 App. Cas. 223, 225 (H.L. 1890) per Lord Herschell (“a Court
of Appeal ought only to decide in favour of an appellant on a ground there put forward for the first time, if it be
satisfied beyond doubt, first, that it has before it all the facts bearing upon the new contention, as completely as would
have been the case if the controversy had arisen at the trial; and next, that no satisfactory explanation could have been
offered by those whose conduct is impugned if an opportunity for explanation had been afforded them when in the
witness box”) & Kirkfield Park & Arthur Oliver Residents Assoc. v. Winnipeg, 132 D.L.R 4th 448, 453, leave to appeal
ref’d, 138 D.L.R. (4th) vii (note) (Man. C.A. 1996) per Helper, J.A. (“In order to succeed in its preliminary motion,
the association was required to satisfy this Court that on each of the three new issues: a) it had a meritorious argument;
b) the respondents would not be prejudiced by having to address new legal arguments for the first time at the appellate
level; and, c) all the evidence on each issue forms part of the record to enable this Court to canvas that issue fully”).
See Burrell v. The Queen, [2008] HCA 34, ¶ 16; 238 C.L.R. 218, 223 per Gummow, A.C.J. & Hayne, Heydon,
Crennan & Kiefel, JJ. (“the principle of finality serves not only to protect parties to litigation from attempts to
re‑agitate what has been decided, but also has wider purposes. In particular, the principle of finality serves as the
sharpest spur to all participants in the judicial process, judges, parties and lawyers alike, to get it right the first time.
Later correction of error is not always possible”).
177 St. Paul-Butler v. City of Leduc Subdivision and Development Appeal Board, 2018 ABCA 3, ¶ 77; 70 M.P.L.R.
5th 1, 22 (chambers) per Wakeling, J.A.
178 Roman Catholic Separate School Trustees For Tiny v. The King, [1928] A.C. 363, 390 (P.C.) (Can.) per Viscount
Haldane (“It is a satisfaction to have had the advantage in a case so important and complicated as this, of judgments
so thorough and exhaustive as these, both in the Supreme Court of Canada and in the Ontario courts”) & Wal-Mart
Canada Inc. v. United Steelworkers of America, 36 C.L.R.B.R. 2d 159, 160, leave to appeal ref’d, [1997] O.L.R.B.
Rep. 963, leave to appeal ref’d, [1998] 1 S.C.R. xv (Ont. (Gen. Div.) Div. Ct. 1997) per Campbell, J. (“The applicant’s
Charter arguments were not raised before the Board. We do not have the benefit of the Board’s labour relations
expertise on this issue ... . Fundamental issues such as the constitutional validity of s. 11 of the Labour Relations Act,
1995 ... should not be decided by this court without the assistance of a considered decision of the Ontario Labour
Relations Board”).
179 Canada v. Runkle, 2015 ABCA 233, n. 30; 30 Alta. L.R. 6th 59, n. 30 (chambers) per Wakeling, J.A.