Solvent Petroleum Extraction Inc., Organic Research Inc., Organic Research Limited Partnership, Becker Engineering Limited, Union Farm Equipment, Inc., Seona Wilder, Dara Wilder, Gerald Byerlay, C & C Auto Truck and Equipment Sales Inc., Diversified Machine Tool Inc. And Ronald Johnson v. Minister of National Revenue, [1989] 2 CTC 177 -- text
Desjardins, J.A. (Pratte and Stone, JJ.A. concurring):—The issue raised in this appeal concerns essentially the constitutional validity of section 231.3 of the Income Tax Act, R.S.C. 1952, c. 148, as added by S.C. 1986, c. 6 ("the Act")