"The devil is in the detail," a Labour adviser said of Labour's proposal to impose a levy on workplaces which were not training New Zealand workers up.
An hour later, Grant Robertson was indeed in a form of hell as he tortuously tried to explain how a policy which looked, smelt and quacked like an attempt to penalise companies for hiring migrant workers was not that at all.
The proposal had looked fairly obvious. It was in a section of the Future of Work report that spoke of "skilled immigration being used to compensate for our failure to train our own local workforce for the jobs that are available."
The levy was to apply to companies in sectors with skills shortages which were therefore reliant on migrant labour.
Earlier, Labour leader Andrew Little had rattled off the number of work visas given out to semi-skilled workers and said it "didn't make sense." The examples he had used of businesses which might be affected had been construction, chefs and IT - all of which are heavily dependent on migrants.