All prisoners sentenced to serve any time in the city jail may be compelled to labor on public works by the police chief under the direction of the field operations director for a period of eight hours during every working day of the term of confinement of such persons unless the health officer, upon examination, ascertains that the prisoner is physically unable to work.
(Ord. 1394 § 1, 1978; 1964 Code § 1.11)