Here's the latest of the FBI probe of top Hollywood lawyers resulting from a criminal case against private investigator Anthony Pellicano.

Bert Fields, the prominent entertainment lawyer whose celebrity clientele has included Tom Cruise, Michael Jackson and Kevin Costner, said Tuesday that he has formally been notified that he is a subject of a federal grand jury investigation into illegal wiretapping.

"I've been told that I am a subject, not a target, of the investigation," Fields said. "But I have never in any case had anything to do with illegal wiretapping. I don't do that."

Investigators in the wiretapping case have questioned a broad range of entertainment industry figures, including Warren Beatty and comedian Garry Shandling, according to attorneys involved in the probe. Beatty declined to return calls, as did Shandling.

Authorities suspect Pellicano illegally wiretapped people while working for the lawyers, perhaps with the assistance one or more law enforcement agents. They are trying to figure out whether the lawyers Pellicano was working for knew of the illegal taps, ordered them or condoned them. We suspect the answer is going to be "no," but that it will keep a lot of lawyers on edge for a while, wondering just what was on all those tapes seized from Pellicano's computers.

Update: TV news reporter and Court TV Anchor Diane Dimond is the latest to be advised her phones were tapped by Pellicano--back in '93 when she was covering the Michael Jackson scandal for Hard Copy.