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  • double aspect doctrine accounts for 2 out of 736 casebriefs.

Style of causeRatio

Multiple Access Ltd v McCutcheon, [1982] 2 SCR 161

Double aspect doctrine: Laws with substantially similar purpose regulating the same matter can both be valid.
** There is double aspect to insider trading (the federal aspect deals with company law; the provincial aspect deals with securities regulation)

If there is no repugnancy (express contradiction), then the provincial legislation remains operable
** Mere duplication without actual conflict or contradiction is not sufficient to invoke the doctrine of paramountcy and render otherwise valid provincial legislation invalid
** Mere duplication in itself does not equal conflict