SEATTLE - Threats against the University of Washington law school and its students have campus police on high alert and law students on the lookout.

The first sign of tightened security: signs on the door that say that nobody but students, staff or faculty are allowed in the William H. Gates building.

Campus police are checking the university ID's of everyone who enters the law school after graffiti threats were scrawled on a wall last week. The threats were both against the school and law school students.

Police won't describe exactly what the graffiti said or where it was left, but reportedly the threats indicated they'd be carried out in November.

"I'm trying not to get too scared but I'd like to see a little bit stronger security measures taken," said law student Alena Cesterman.

Some 700 students attend the school, and police say the threats weren't against any individual student but the school as a whole.

The dean plans to keep security tight until the threat blows over. A police officer will be in the building lobby for the foreseeable future.

So far, no suspects have been interviewed and police haven't determined if the threat was a joke, or serious. So they're asking everyone to watch for anything suspicious.