21.   The officers patrol the streets and lanes of Northern Ireland in gray armor-plated vans with narrow bulletproof glass windows and side gunports.

22.   The officers were patrolling in an unmarked car looking for a serial rapist.

23.   They help watch their neighborhood or work on police department computers so officers can patrol.

24.   Three plainclothes officers were patrolling Park Slope in an unmarked car on Wednesday evening when they saw Grant.

25.   Two hospital security officers patrol the corridor.

26.   Under the program, six officers patrol neighborhoods throughout south Glendale, by foot, bicycle and patrol car.

27.   Police presence at the funeral was light, but some armed officers patrolled the area in Jeeps and an army helicopter hovered overhead.

28.   And the bombing runs were called off for hours while security officers patrolled to ensure no one else was on the range.

29.   By later afternoon, the rioters had dispersed and anti-riot officers in trucks patrolled the area.

30.   Federal officers patrolled outside and dogs sniffed packages and briefcases being brought into the building.