What is a police magistrate?

Question

What is a police magistrate?

Answer 1

Is there a specific jurisdiction this question pertains to?  That would help.

In a general sense, a police magistrate likely refers to a judge, appointed or elected depending on where you are located, that arraigns subjects arrested to ensure there is probable cause to keep the subject detained until his case is adjudicated, and to set bail, if eligible, so the subject may be released pending court process after posting said bail.