(b) The commissioner shall not revoke or suspend any certificate of registration apart from upon observe and hearing in accordance with chapter fifty four. The commissioner might issue subpoenas, administer oaths, compel testimony and buy the creation of publications, documents and paperwork. If any person refuses to look, to testify http://in-home-care51617.ambien-blog.com/11709234/not-known-details-about-senior-home-care