1.   In Knin, residents set up barricades on all approach roads to prevent Croat police arriving to stop the referendum, and local reservists carrying firearms patrolled the streets.

2.   But the Office of Compliance, the agency set up to carry out the new law, rejected the effort to prevent the police from joining a union.

3.   Careening along two-lane highways and tight streets traversed by pedestrians, Austin prevented police from successfully using traditional measures such as roadblocks or blowing out tires.

4.   Crum said debris from the fire prevented police from finding it earlier.

5.   Cult members at some facilities tried to prevent police from entering and were ejected screaming in protest.

6.   Fellow organizers said he tried to prevent police from taking his briefcase.

7.   In one interview this week, a subject removed the batteries from a mobile telephone, explaining calmly that this would prevent security police from monitoring the interview.

8.   Joiner said that prevented police from infiltrating protest groups to learn their tactics and their plans.

9.   Katzman agreed nothing now in the law will prevent police from continuing to circumvent state laws.

10.   NATO forces, while refusing to intervene in the crisis, have set up checkpoints around Banja Luka to prevent the police from mobilizing to detain Ms. Plavsic.