The trustees of any county law library may release the board of county commissioners from the duty to maintain the library in the county courthouse or at some other suitable place, and may establish and maintain the library in some suitable place not provided by the board of county commissioners in which event the board of county commissioners shall pay to the board of trustees from its general fund an amount not to exceed $5,000 annually to be applied to the cost of maintaining and operating the library as the board of trustees in its discretion may determine to be proper. The trustees shall have the power to rescind the action at any time, in which case it shall become the duty of the county commissioners to establish the library in the courthouse or any other suitable place provided and maintained by the county. If the board of trustees elects to establish and maintain the library at some other place other than the county courthouse, or at some other suitable place not selected by the board of county commissioners, the board of trustees may also release the board of county commissioners from the duty to appoint a librarian and assistants for the library.