The most recent and most extensive inquiry began in 1983.

Ricardian equivalence has been the subject of extensive empirical inquiry.

An extensive inquiry, involving 150 police officers and 11,000 interviews, failed to find the culprit.

A more extensive inquiry is usually necessary for specific-intent crimes.

This has been to the dissatisfaction of Murray's family, who have called for a more extensive inquiry.

On account of an extensive inquiry, the test has been found successful.

The investigation marks the second extensive inquiry this year into trading practices at the nation's commodity exchanges.

He spent some time on the office telephones making extensive inquiries on my behalf.

This is an honest report, conducted after an extensive inquiry.

Frederick also ordered extensive inquiries into the events of 1776, that took place in New York from 1778 to 1782.