Pub. L. 91-556, tit. V, sec. 511

Sec. 511. No part of the funds appropriated by this Act shall be used to pay the salary of any Federal employee who is convicted in any Federal, State, or local court of competent jurisdiction, of inciting, promoting, or carrying on a riot, or any group activity resulting in material damage to property or injury to persons, found to be in violation of Federal, State, or local laws designed to protect persons or property in the community concerned.