"Hey this is the IRS, we want to ask you some questions about your jet usage"
"Oh hello, this is Dewey, Cheatem, & Howe, the legal and financial firm representing [insert business wealthy enough to own a private jet here]. What questions do you have?"
Sigh "Nevermind, time to go back to scraping money from average citizens"
Ah, good old Republican propaganda being touted out in order to "muh both sides!" this and additional justify cutting money for the IRS to go after these tax cheats.
The first question is not a question, it's a demand: send us all your flight logs that you're required to keep along with a business justification for each one, especially the flights to the Caribbean and Europe.
This seems pretty easy. If someone is going to the Caribbean all the time on a corporate jet, there should be business interests on that particular island. Unless their business is hospitality, they probably aren't actually doing business on that island. So the use of the jet is taxable income.