Mass. Gen. Laws ch. 35, § 22A: Deposit of funds restricted

Section 22A. County treasurers, court clerks, sheriffs and superintendents of jails and houses of correction, probation officers, registers of probate and insolvency and registers of deeds shall not deposit any of the funds for which they are accountable in any national bank, trust company or banking company with which such treasurer or officer is associated as an officer or employee or has been associated as an officer or employee at any time during the preceding three years.