Source, in full
Inscription in rings given by Coke to several of his friends on June 20, 1606, in anticipation of his judicial investiture; reported in Humphry William Woolrych, The Life of the Right Honourable Sir Edward Coke (1826) p. 75. Derived from a latin maxim, Lex est tutissima cassis; sub clypeo legis nemo decipitur: Law is the safest helmet; under the shield of the law no one is deceived.