(2) The suggested modification of Bourke: No party to these proceedings challenged the correctness of this Court's unanimous holding in Bourke. However, the Commonwealth contested one passage in the reasoning of the Court in that case where it explained that, to be permissible as a federal law which nonetheless touched and concerned State banking (and hence insurance), the connection with, or effect on, that activity must be "'so insubstantial, tenuous or distant' that the law cannot be regarded as one with respect to State banking"[59]. This test is expressed in a passage in the Court's reasons prefaced by the words "Put another way". The Attorney-General of the Commonwealth submitted that the alternative expression, supported by the Court by reference to the Melbourne Corporation case[60], was erroneous. It was over-broad and was in any case subject to the following sentence explaining that the tests propounded are those appropriate to "the familiar process of characterization". Applying that familiar process, the Commonwealth urged that the impugned provisions could not be characterised as laws with respect to "State insurance". They did not infringe the exclusion expressed in s 51(xiv) of the Constitution. They were thus laws made under other relevantly unqualified paragraphs of s 51 (notably par (xx)). Accordingly, they were constitutionally valid and took primacy over the inconsistent State laws by force of s 109 of the Constitution. The second issue, therefore, concerns the correctness of the second expression of the applicable test for the validity of a federal law in such circumstances, as stated in Bourke; and