Any advance made under the authority of this chapter shall be considered as having been made to the officer or employee, to be expended by the officer or employee as an agent of the city for the city’s purposes only, and specifically to defray necessary costs while performing official duties. No such advance shall be considered as a personal loan to such officer or employee, and any expenditure thereof, other than for official business purposes, shall be considered a misappropriation of public funds. (Ord. 579 § 6, 1970).