Berkshire Superior Court Judge William Simons yesterday called a Beach Boys concert a serious issue of health and safety, then granted a preliminary injunction against it.

The decision came after a full day of testimony from promoter Frank J. Russo, the Stockbridge Board of Selectmen and about a dozen witnesses.

The concert was scheduled to be held tomorrow at the Music Inn in Stockbridge, the same site at which Russo held an Allman Brothers concert last Sunday.

At that concert Russo hired two motorcycle gangs, the Vigilantes and the Warlocks, as outside security guards. Several gate crashers were sent to the hospital by the motorcyclists.

"The problem now is how to deal with the crowd that will show up on Sunday," Judge Simons said.

John Beacco, chairman of the Stockbridge Board of Selectman, said he was "very pleased" with the judge's decision, and now wanted "to get the word out" to some 4,500 people who had purchased advance tickets.

However, Russo said he was still optimistic that the concert would be held. "The war is not over yet," he said. Russo refused to elaborate, but did say he has "until Sunday" to see if the decision can be overturned.