“there will be a distortion of the internal market if goods in respect of which duty has not been paid are circulating freely alongside goods where duty has been paid”
“The test of reasonable excuse involves the application of an impersonal, and objective, legal standard to a particular set of facts and circumstances. The test is to determine what a reasonable taxpayer in the position of the taxpayer would have done in those circumstances, and by reference to that test to determine whether the conduct of the taxpayer can be regarded as conforming to that standard.”