.Not less than three Visitors shall, at least once in every month, make a joint inspection of every part of the psychiatric hospital or psychiatric nursing home in respect of which they have been appointed and examine every minor admitted as a voluntary patient under section 17 and, as far as circumstances will permit, every other mentally ill person admitted therein and the order for the admission of, and the medical certificates relating to, every mentally ill person admitted subsequent to the joint inspection immediately preceding, and shall enter in a book kept for that purpose such remarks as they deem appropriate in regard to the management and condition of such hospital or nursing home and of the inpatients thereof:Provided that the Visitors shall not be entitled to inspect any personal records of an inpatient which in the opinion of the medical officer in charge are confidential in nature:Provided further that if any of the Visitors does not participate in the joint inspection of the psychiatric hospital or psychiatric nursing home in respect of which he was appointed a Visitor for three consecutive months, he shall cease to hold office as such Visitor.
