O610: Gelber returns to his station for his last half hour. "If anything happened, it would certainly not happen now."

O645: Gelber signs his log report sheet, leaves his post and returns to H.U.P.D.Ten minutes later, he turns in his set of keys and radio. At 7 a.m. he goes home.

* * *

Each week, Gelber and Harvard's 110 other student guards put in time covering the 27 security posts around the University, including the medical school. Harvard's police department has been hiring students since the early '70s to work as guards.

Students must work at least two seven hour shifts a week. Undergraduates are allowed a maximum of three shifts, graduates four.

None of the students are armed. Students are not responsible for arresting anyone--they just report what's going on to the police.

"Harvard is definitely not a violent place. The biggest crimes a student security guard might confront is bike theft and trespassing," Bahanna says.

According to Bahanna, the job regulations are strict but relaxed. "We are not a bunch of tyrants. We always understand it when students have problems and cannot do their work. As long as they have done what is required, the students can study."

Student security guard Augustin U. Agu, a fourth-year Education School student from Nigeria, says that student security is not a high-pressure job. "It allows a lot of time to think and to meditate," says Agu, who works up to 32 hours a week.