The commission has subpoenaed West Point and has taken the testimony of various company officials, according to the filing.

The commission subpoenaed Mr. Cuomo, the former Democratic gubernatorial candidate, today, asking him to appear on Sept. 18 and answer questions about the advertising campaign under oath.

The commission also subpoenaed thousands of documents in preparing its report.

Given a list of questions in writing in January 1997, he did not respond at all until December, after the commission had already subpoenaed him twice.

Network Associates, based in Santa Clara, Calif., said it had received a formal notice of investigation, which grants the commission broader powers to subpoena information from the company and its distributors.

The commission cannot subpoena documents or conduct unannounced searches for evidence.

In Mr. Regan's case, the commission has subpoenaed Mr. Palumbo to appear next month.

Now, the commission has subpoenaed documents from communities around the state to determine whether other municipalities are also overpaying their retirees, local officials said.

Such a commission could subpoena witnesses, including the prime minister, and hold open hearings on the war, the planning and the readiness of the army and the civil defense authorities in the north.

The agency will set a date soon for Mr. Singh to appear and make his case, Mr. Garfield said, and if he does not come voluntarily, the commission will subpoena him.