8. The following persons called as witnesses shall receive no indemnity or allowance:(a) court officers and public officers having their office in the building where the Court sits;
(b) the assistants of said officers, as well as employees under their control;
(c) the members of the prison staff situated at the county seat;
(d) any person held in prison or under detention;
(e) any person, even one summoned as a witness, who is obliged to appear as an accused on the same day.