In times of disturbances, uprising or riot, only the following persons shall be permitted to enter the institution: employees of the institution; State or local police; personnel of the National Guard or the United States Army; firemen; the sheriff and his deputies; the district attorney and members of his staff; local members of the clergy; physicians; those persons permitted to enter the institution by law, and such other persons as may be designated by the commissioner.
N.Y. Comp. Codes R. & Regs. Tit. 7 § 53.10