Injustice often arises also through chicanery, that is, through an over-subtle and even fraudulent construction of the law. This it is that gave rise to the now familiar saw, "More law, less justice."
Existunt etiam saepe iniuriae calumnia quadam et nimis callida sed malitiosa iuris interpretatione. Ex quo illud "summum ius summa iniuria" factum est iam tritum sermone proverbium.
Original text (Latin)
Notes from Wikiquote
Book I, section 33; translation by Walter Miller.