The public children services agency shall prepare and keep written records of investigations of families, children, and foster homes, and of the care, training, and treatment afforded children, and shall prepare and keep such other records as are required by the department of job and family services. Such records shall be confidential, but, except as provided by division (B) of section 3107.17 of the Revised Code, shall be open to inspection by the agency, the director of job and family services, and the director of the county department of job and family services, and by other persons upon the written permission of the executive director.