Only one company, Statue Cruises, is allowed to take visitors to Liberty Island. But that has not deterred rival companies — some licensed, some not — from selling tickets that only provide views of the Statue of Liberty from the water.

Mr. de Blasio denied that the crackdown was linked to Mr. Baldwin’s complaints, although city officials said they decided to release details of their enforcement efforts after receiving “increased media inquiries” about Mr. Baldwin’s encounter.

“Is that driving our enforcement at Battery Park? No,” the city’s police commissioner, James P. O’Neill, said on Tuesday, during an unrelated news conference at the police training headquarters in Queens.

Laura Feyer, a spokeswoman for Mr. de Blasio, said, “Mr. Baldwin brought increased attention to the issue tourists and visitors face every day, and our agency partners are continuing to work together until this problem is a thing of the past.”

Ms. Feyer said the Department of Consumer and Worker Protection heard a proposed rule change in September that would require companies to disclose the precise destination of the tour on their tickets; in addition, the Economic Development Corporation no longer allows boats who sell tickets via street vendors to use city-controlled docks.

On Tuesday, however, the absence of unauthorized ticket vendors in Battery Park hawking boat rides to the Statue of Liberty was noticeable.

Signs in front of Castle Clinton, where official tickets are sold, and immediately in front of the Bowling Green subway station, warned visitors that the “illegal vendors” selling tickets in Battery Park are “not authorized” to do so. A police cruiser was posted just outside the subway station.