LAS VEGAS -- Nevada boxing authorities called Mike Tyson's latest bout an "embarrassment" and said special security for the referee would have to be put in place if he fights in the state again.

"Our referees are very important to us," said Luthar Mack, a member of the Nevada Athletic Commission, told the Las Vegas Review-Journal. "When Tyson reached around the referee it could have ended the referee. I think it makes the referee more able to do his job if he is not thinking about getting killed."

Tyson is not licensed in Nevada. All commission licenses expire Dec. 31 each year and Tyson has not fought in Nevada this year so he has had no reason to apply.

The former heavyweight champion stopped Lou Savarese after 38 seconds of their fight in Glasgow, Scotland, on Saturday night.

After referee John Coyle halted the bout, Tyson went around him and hit Savarese twice. He also hit Coyle, who fell as he was elbowed aside. The referee quickly got up and pushed Tyson away as cornermen charged into the ring.

"It was an embarrassment to the sport of boxing," Mack said. "I am concerned about the referees and how they will be able to protect themselves. That is very scary when you have someone like Mike Tyson continue to throw punches.

"What can one man do to protect himself against someone like Mike Tyson? You don't have a weapon. You don't have a defense. If Tyson went after the referee, so much damage could be done before anybody could step in to assist."

Mack said if Tyson fights in Nevada again, the commission would have to set up special security to protect the referee.

Commission executive director Mark Ratner said if Tyson does apply for a license, he would have to appear at a meeting before the commission.

Tyson has not fought in Nevada since his bout with Orlin Norris Oct. 23 at the MGM Grand Garden was declared a no-contest after the first round. Norris went down, dislocating his right knee when Tyson hit him after the bell. Doctors said Norris could not continue.

The commission revoked Tyson's license after he was disqualified for biting Evander Holyfield on both ears in their heavyweight bout on June 28, 1997. The commission voted to reinstate his license 15 months later.

"It is really sad that Mike Tyson -- who is perhaps one of the greatest heavyweight champions of all time, with perhaps the biggest punch in boxing _ still cannot bring a fight to a natural conclusion without something controversial happening," commission member Glenn Carano said.

Commission member said Tyson showed "a lack of respect for the rules of boxing, and once again he displayed uncontrolled behavior in the ring. It is scary."