Quaestor

A quaestor (UK /ˈkwiːstər/, US /ˈkwɛstər/, Latin for investigator) was a public official in Ancient Rome. The position served different functions depending on the period. In the Roman Kingdom, quaestores parricidii (quaestors with judicial powers) were appointed by the king to investigate and handle murders. In the Roman Republic, quaestors (also pluralized quaestores) were elected officials that supervised the state treasury and conducted audits. It was the lowest ranking position in the cursus honorum (course of offices). In the Roman Empire, the position, which was initially replaced by the praefectus (prefect), reemerged during the late empire as quaestor intra Palatium, a position appointed by the emperor to lead the imperial council and respond to petitioners.

In modern usage in Italy and Romania, a quaestor is a senior ranking officer on the police force. In some organizations, a quaestor is the officer that oversees its finances, similar to a treasurer in other organizations.

The earliest quaestors were quaestores parricidii (quaestors with judicial power), an office dating back to the Kingdom of Rome. Quaestores parricidii were chosen to investigate capital crimes, and may have been appointed as needed rather than holding a permanent position. Ancient authors disagree on the exact manner of selection for this office as well as on its earliest institution, with some dating it to the mythical reign of Romulus.

...
Wikipedia