Louis Brandeis, Gulf Fisheries Company v. Macinerney…
“ Here the only claim made by the company is that the statute as applied lays an impost on imports. The county attorney denies that the fish taxed are imports, insists that even if they are imports, the tax is valid as a license fee exacted to defray the cost of inspection, and contends that the imposition is, in any event, valid, because the fish, before the tax is laid, become mingled with the common mass of property in the state and thus lose their character as imports and their exemptions from state taxation. We have no occasion to inquire whether the fish are imports. ”
