IS A PRELIMINARY INVESTIGATION A JUDICIAL PROCEEDING?

> Yes   it   is   a   judicial   proceeding   where   the   prosecutor   or investigating officer acts a quasi-judicial officer
> Parties  are  given  the  opportunity  to  be  heard  and  to  produce evidence which shall be weighed and upon which a decision shall be rendered
> Since it is a judicial proceeding, the requirement of due process in judicial proceedings is also required in preliminary investigations