Redfern v Dunlop Rubber Australia (“Redfern's Case”) (1964) 110 CLR 194

This case considered the trade and commerce power under s.51(i) and whether or not the Commonwealth could regulate the activities of a tyre manufacturer where sales were transacted both interstate and intrastate.  The central issue was whether these sales could be separated and whether the trade and commerce power could also regulate the intrastate sales as well.