If a local depositing authority, located in whole or in part in a parish or municipality having a population of over one hundred thousand finds existing contracts, or any subsequent contracts, inadequate to meet its needs and requirements, it may enter into such a supplemental contract with any bank within or without the state as is deemed necessary best to meet its needs and requirements; provided, that all of the provisions of this Chapter, with respect to security for deposits and other requirements are complied with.
La. R.S. § 39:1216