“..the appellant is entitled to rely upon the common law duty of a public body to act fairly not just in its decision-making process but also in administering its statutory powers.”
“41. The issue of proportionality in this context is one of human rights, and whether, in accordance with the European Convention on Human Rights, Dina Foods Ltd could demonstrate that the imposition of the penalty is an unjustified interference with a possession. According to the settled law, in matters of taxation the State enjoys a wide margin of appreciation, and the European Court of Human Rights will respect the legislature’s assessment in such matters unless it is devoid of reasonable foundation. Nevertheless, it has been recognised that not merely must the impairment of the individual’s rights be no more than is necessary for the attainment of the public policy objective sought, but it must also not impose an excessive burden on the individual concerned. The test is whether the scheme is not merely harsh but plainly unfair so that, however effectively that unfairness may assist in achieving the social objective, it simply cannot be permitted. 42. Applying this test, whilst any penalty may be perceived as harsh, we do not consider that the levying of the penalty in this case was plainly unfair. It is in our view clear that the scheme of the legislation as a whole, which seeks to provide both an incentive for taxpayers to comply with their payment obligations, and the consequence of penalties should they fail to do so, cannot be described as wholly devoid of reasonable foundation. We have described earlier the graduated level of penalties depending on the number of defaults in a tax year, the fact that the first late payment is not counted as a default, the availability of a reasonable excuse defence and the ability to reduce a penalty in special circumstances. The taxpayer also has the right of an appeal to the Tribunal. Although the size of penalty that has rapidly accrued in the current case may seem harsh, the scheme of the legislation is in our view within the margin of appreciation afforded to the State in this respect. Accordingly, we find that no Convention right has been infringed and the appeal cannot succeed on that basis”