Definition of enquiry agent in English:

enquiry agent

noun

British
dated
  • A private detective.

    • ‘We could of course employ a private enquiry agent but frankly I don't know a good one.’
    • ‘It may be appropriate, depending on the amount involved, for a solicitor to incur expenses in trying to trace a client, for example in engaging an enquiry agent or advertising.’
    • ‘After paying a private enquiry agent to make some further investigations I discovered that the franchise was a scam and that everyone involved had lost significant amounts of money.’