John McLean, United States v. Irving — Opinion of the Court
“ The Treasury officers are the agents of the law. It regulates their duties, as it does the duties and rights of the collector and his sureties. The officers of the Treasury cannot, by any exercise of their discretion, enlarge or restrict the obligation of the collector's bond. Much less can they, by the mere fact of keeping an account current, in which debits and credits are entered as they occur, and without any express appropriation of payments, affect the rights of sureties. The collector is a mere agent or trustee of the government. ”
