Administrative Due Process Includes
(a) the right to notice, be it actual or constructive, of the institution of the proceedings that may affect a person’s legal right;
(b) reasonable opportunity to appear and defend his rights and to introduce witnesses and relevant evidence in his favor;
(c) a tribunal so constituted as to give him reasonable assurance of honesty and impartiality, and one of competent jurisdiction; and
(d) a finding or decision by that tribunal supported by substantial evidence presented at the hearing or at least ascertained in the records or disclosed to the parties.
**Based on Miguel Singson vs National Labor Relations Commission & Philippine Airlines