A brokerage denied drug abuse was widespread.

Jerold Weinger, chief executive of Brooks, Weinger, Robbins & Leeds Inc., said that the firm was not aware of the use of illegal drugs in any of its business offices. He also denied that cocaine was exchanged for stock tips. His Wall Street brokerage firm was hit last week by a raid that resulted in drug charges against a senior partner and eight employees. The firm, Weinger said, will take prompt action against any employee involved in illegal drug use and intends to continue to cooperate with law enforcement agencies.