No civil employee, other than the following civil employee, shall be removed or dismissed from the civil service without providing him/her with a reasonable opportunity to furnish proofs his/her defense:
(a) Who has been convicted by a court of a criminal offence involving moral turpitude,
(b) Who is holding a temporary post,
(c) Who has disappeared and whose whereabouts are not known or there are sufficient grounds that it is not possible to establish contact with him/her.
(d) Who is convicted by a court of a corruption charge.