Detective agency - business, additional earnings or a hobby?

[Детектив-Юг]

By the way, are there people here who are not detectives, but have managed to organize a detective business? In general, is this found in this matter? (Remember? Wise is the one smart people work for)

I know excellent businessmen, everything is like selection, advertising, marketing, seriousness and pomposity, staff, planning meetings by the boss in the office at the big table.
But in the end, the customer appeared, everyone discussed with him, outlined a work plan, received an advance payment, drank it.

And finally, a small question arises, But who is in the field?

Detective activity is, first and foremost, painstaking work, experience, connections, the proper organization of events, and most importantly, the thinker should work.