= coroner, n. 1.

A person who conducts or participates in judicial inquiries; esp. one who (habitually) profits by initiating lawsuits. Now historical and rare.

a person who instigates an inquest; an accuser, a plaintiff; cf. questmonger, n.

a person who attends or participates in an inquest; cf. questmonger, n.

One whose official duty it is to inquire, examine, or investigate, in matters of crime, taxation, etc.

A person appointed to undertake or participate in an inquiry or inquisition (cf. quest, n.2 2); spec. (a) a parish or ward official elected…

An officer of a county, district, or municipality (formerly also of the royal household), originally charged with maintaining the rights of the…

a member of a wardmote inquest (of the city of London).