1.   At Taft, a series of vandalism incidents prompted school officials to create an anonymous tip line that students could call to report suspected hooligans.

2.   - Get information on how to report criminal activity, with links to such sites as the National Center for Missing and Exploited Children tip line.

3.   A toll-free tip line has been set up.

4.   Boston schools responded by establishing an anonymous tip line for students to report fears of impending violence.

5.   But Shimensky believes that a crucial key to preventing school violence is encouraging students to report threats and weapons to school staff, police and on anonymous tip lines.

6.   Criminologists say there has been no independent research on the success or failure of online tip lines or on what percentage of the information collected is are worthwhile.

7.   Food companies, farms and government agencies all pitch in staffing hotlines and tip lines to help you get that holiday meal successfully to your table.

8.   For investigators, online tip lines have one big advantage.

9.   Investigators urged anyone with information to call a tip line.

10.   It is a conundrum of the information age, and it is now at the crux of a debate about Internet tip lines.