May the Supreme Court investigate charges against court personnel even if the complainant is not the offended party or has subsequently desisted?

It is well-settled that the standing or the personal interest of a complainant is not material in an administrative case against a judge or another court personnel because such case involves the public good. It has been held that this Court's interest in the affairs of the judiciary is a paramount concern that must not know bounds. Thus, this Court has a duty to investigate charges against court personnel, regardless of complainant's standing or subsequent desistance. In fact, it can do so on its own, even when there is no complainant. (Bernardo v. Judge Fabros, A.M. No. MTJ- 99-1189, May 12, 1999)