  Some of the time, the interpreter may be able to pursue both objectives simultaneously without difficulty. Given some principles that justify norms in this sense, the interpreter might add to the set certain further norms such as those implied by the explicit communication that constitutes the original norms, if adding those norms would give better effect to the principles and thereby improve principled consistency (on the current understanding of that notion) in the way government treats its citizens. Or he may add certain norms that correspond to the relevant principles so do not conflict with the prior, institutionally communicated norms with which by hypothesis the principles are consistent, whether or not the new norms are implied by the prior norms. Or (if this is different) he may add the norms that judges are morally required to rely on in order to resolve residual matters in domains that are only partially regulated by the original set. In his view, the expanded rather than the original set of standards would be valid law.