A sponsored post, by letter of the law, must be labeled as sponsored. (thenextweb.com)
Not content with merely reforming the structure of government, there has been a drive to radically alter the substantive letter of the law within the system itself. (newlawjournal.co.uk)
People typically debate me on helpfulness or based or letter of the law which the most accurate answer will frequently run counter to. (money.stackexchange.com)