A privileged publication in a newspaper which shall not be considered as libelous is one made:
(1) In the proper discharge of an official duty.
(2) In any publication of or any statement made in any legislative or judicial proceeding.
(3) In a communication, without malice, to a person interested therein, by one who is also interested, or by one who stands in such relation to the person interested as to afford a reasonable ground for supposing the motive for the communication innocent, or who is requested by the person interested to give the information.
(4) By a fair and true report, without malice, of a judicial, legislative or other public official proceeding, or of anything said in the course thereof, or of a charge or complaint made by any person to a public official, upon which a warrant shall have been issued or an arrest made.