Code of Professional Responsibility and Accountability (CPRA)
Section 18. Investigation. - Upon joinder of issues or upon failure of the respondent to answer, the Investigating .Commissioner shall proceed with the investigation of the case. However, if despite reasonable notice, the respondent fails to file an answer or appear, the investigation shall proceed ex parte. In both instances, the investigation shall proceed with dispatch. The respondent shall be given full opportunity to defend and be heard, whether through counsel or not, and to present witnesses. The Investigating Commissioner shall have the power to issue subpoenae and administer oaths and affirmations in relation to the conduct of the proceedings.