An investigator for the US Treasury Department’s Inspector General’s Office got in touch with me about last Thursday’s column on possible wrongdoing at the IRS.

You might recall that a whistle-blower — who I didn’t name — said IRS officials back in the early 2000s were tipping off congressmen to corporate mergers so the elected officials could make money through insider trading.

And, this tipster said, some IRS officials were making money off the inside information themselves. The whistle-blower didn’t know how long that practice continued because he had gotten thrown out of the IRS.

The second shocking part of the story was that the IRS Inspector General’s office blew me off when I offered it the information. Bad choice: I wouldn’t have run the story if I thought the IG was going to look into it.

Well, now the IG is ready. I got a call from the Inspector General’s office of the Treasury Department — which oversees the IRS — asking about the story. And I’ve now put the tipster and the Treasury investigator in touch with each other.

When I get updates, I’ll pass them on.