The purpose of this legislation is hereby declared to be the establishment of a centralized State Treasury System under which state moneys will be adequately protected, and at the same time will be controlled and invested in such a way as to realize the maximum return consistent with safe and prudent treasury management. This legislation visualizes that the State Controller will be responsible for maintaining the segregated accounts of the moneys of state agencies which are deposited with the Treasurer in trust, and that the State Treasurer will not maintain records which in their detail duplicate the accounting records maintained by the Controller for these moneys.