Heavyweight Scott LeDoux will testify today before a federal grand jury in Baltimore concerning charges he made against the U.S. Boxing Championships on Feb. 18 at the U.S. Naval Academy.

On Wednesday, Le Doux's attorney is scheduled to appear at an informal hearing before the Maryland State Athletic Commission in connection with the disturbance the boxer created after being outpointed by Johnny Boudreaux in the main event of the bouts televised from Annapolis.

During the disturbance, LeDoux claimed that people associated with Don King Productions as consultants controlled most of the fighters in the tournament and that rign officials ngaged for the tournament were biased.

In addition to the Le Doux testimony, it has been learned, other probes are being made into boxing operations.

The Federal Bureau of Investigation has made inquries at Madison Square Garden in New York City about some of the fiscal procedures in staging big-time bouts. The questions were not about shows presented at the Garden.

The Bulletin in Philadelphia has quoted Frank Gelb, former manager of heavyweight contender Jimmy Young, as saying the FBI tried to get in touch with him when he was in Puerto Rico as manager of Ronnia McGarvey, who fought on the George Foreman-Jimmy Young care there. Contact was not made with the FBI, Gelb said.

The Bulletin also reported that the FBI has questioned Carol Polis, a boxing judge in Pennsylvania who officiated at the LeDoux-Bourdeaux bout at Annapolis.

Joe Bunsa, licensed in Maryland and Washington, refereed that bout. He recently said that he was questioned by FBI representatives about how he socred the bout and where he banked.

A spokesman for the Washington office of the FBI said there would be no comment about the LeDoux case. But it was learned that the U.S. attorney's office for the District of Maryland is focusing on the quarterfinal bouts in the U.S. Boxing Championships conducted at Annapolis.

James A. Farley Jr., chairman of the New York State Athletic Commission who is also serving on a committee of the U.S. Boxing Championships, said of LeDoux's charges on television "he better be able to prove his allegations."

Farley helped to assemble ring officials from various jurisdictions in trying to have a uniformity of scoring. Farley said he agreed to help the promotion by Don King Productions in the interest of trying to revive the sport's lighter dvisions through television exposure.

Featherweight Kenny Weldon of Houston has charged that he paid intermediaries who were not his maangers as much as $3,300 of his $7,500 purse to participate in the tournament. Farley, asked about the charge, said of pertinent affidavits turned over to him from the funding American Broadcasting Company:

"George Kanter (of New York City) agreed to give back his end of the purse to Weldon." He also agreed to release from his managership Jerry Kornele (who is under the guidance of Weldon, also a gymnasium operator in Houston who said that Kornele got into the tournament as part of Weldon's arrangement with Kanter).

"Kanter did nothing illegal," Farley said.

Farley noted that Kanter is not licensed as a manager in New York. "Kanter is basically a booking agent, mostly for overseas bouts," Farley said.

LeDoux reportedly paid part of his purses for three bouts to one of the tournament's "consultants," Al Braverman. Two of the bouts were before the tournament, against Foreman and Dino Dennis.

If Braverman is called to testify, he is expected to produce a 1975 letter in which LeDoux had asked Braverman to represent him for an agency fee, about 10 per cent for each bout.