questman

from The Century Dictionary.

• noun One having power to make legal inquiry.
• noun One who laid informations and made a trade of petty lawsuits; a common informer.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete, obsolete, obsolete, obsolete A churchwarden's assistant; a sidesman.
• noun obsolete, obsolete A collector of parish rents.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun obsolete One who is legally empowered to look into certain matters, especially abuses of weights and measures.
• noun obsolete A churchwarden's assistant; a sidesman.
• noun obsolete A collector of parish rents.