School officials found the gun because of an anonymous tip.

Very few people even knew where to send me an anonymous tip.

"I thought the police got anonymous tips all the time."

The college has since set up a phone line for anonymous tips.

The phone call, the anonymous tip that supposedly had come from her own house.

The police said they received an anonymous tip last week with the suspect's name and address.

It was returned when the police received an anonymous tip on April 13 of that year.

Nothing was known about it until 10 days later, following an anonymous tip.

A hot line has been set up for people wishing to give anonymous tips.

He wanted to get a good look at the man he'd received the anonymous tip about.