By focusing their electromagnetic brain waves in Washington, the disciples of the Maharishi Mahesh Yogi say, they hope to reduce homicide, assault and theft by at least 20 percent. "Preliminary statistics" from the group say violent crime dropped 23.6 percent in the first four weeks. But a spokesman for the police would not comment on that assertion, adding that the murder rate had remained steady. The project ended yesterday.

Scattered about Washington at sites like the Washington Hilton and college campuses, the participants engaged in two daily meditation sessions, which lasted two and a half to four hours.

"What we do as a group together is we create a very powerful influence on the larger level of consciousness," Mr. Prohs said. "Without going into your house personally, we can affect what goes on in your house."

He said he had been meditating for 19 years.

By silently focusing on a mantra, meditators say, the mind detaches itself from the thinking process, overcoming thoughts and experiences to reach a stage of "pure consciousness." In that stage, the advocates add, they are able to direct their energy toward reducing crime.

Bill Graeser, 36, also of Northport, is a "soft-rock" musician and meditation teacher. He said he hoped not only to reduce the crime rate, but also to reap inspiration for his songwriting. Like Mr. Prohs, he is staying at Gallaudet University.