The following persons shall be deemed to be public servants within the meaning of section 21 of the Indian Penal Code (45 of 1860), namely:―
(a)every surveyor;
(b)every judge, assessor or other person acting under Part XII;
(c)every person appointed under this Act to report information as to shipping casualties;
(d)every person authorised under this Act to make any investigation or inquiry under Part X and all persons whom he calls to his aid;
(e)every person directed to make an investigation into an explosion or fire on a ship under section 388;
(f)every other officer or person appointed under this Act to perform any functions thereunder.