§ 386. Visitation; inspection and supervision. 1. The board or the department is authorized to visit, in its discretion, any minor under the age of twenty-one years committed, placed out or boarded out and not legally adopted or in the custody of a legal guardian.

2. The board or the department is authorized to visit, in its discretion, any home or place where a child or children are received, boarded or kept under a license or certificate whether or not such children are maintained as public charges. Every licensed home shall, if practicable, be visited by the department at least four times in each year.