On the written request of a respondent or a child, the state's attorney shall permit the respondent or child to inspect and copy or photograph any results or reports of physical or mental examinations and of scientific tests or experiments, or copies of them, which are in the possession, custody, or control of the state's attorney, the existence of which is known or by the exercise of due diligence may become known to the state's attorney, and which are material to the preparation of the case of the respondent or child or are intended for use by a state's attorney as evidence in chief at the hearing.
SDCL 26-7A-61