11.   I could hear the low thrum of her idling engines, the squeak of pilings rustling in the waves, the throb of police boats.

12.   Meanwhile, Vigus said, a New York police boat had pulled out the five other passengers.

13.   Police boats patrolled the harborfront for several days as well.

14.   Police boats patrolled behind the house in a body of water known as Indian Creek, warning off any boats that attempted to approached the residence.

15.   Seven state police boats and two Coast Guard vessels converged on the scene, but backed off when thunder and lightning hit.

16.   Ten percent of the harbor is closed to ships and pleasure craft, enforced by a flotilla of police boats and navy minesweepers.

17.   The crowd also looked out on a New York harbor patroled by police boats and helicopters.

18.   There he encountered a police boat, one of many emergency craft that were shuttling people across the river to Jersey City, N.J.

19.   Two police boats patrolled a canal behind the house.

20.   Two police boats responded as a precaution, according to Deputy Chief Henry Cronin of the police department.