University police arrested a 36-year-old man claiming to be an SF State student for indecent exposure on April 23 in the J. Paul Leonard Library.

According to police, the suspect, identified as Diarras Dwayne Manuel, Jr. of San Francisco, was witnessed walking through aisles of books on the third floor around noon before allegedly unzipping his pants and exposing himself to a female student who was studying at a table near the southeast corner of the floor.

Another female student who happened to witness the incident told police that the suspect appeared to be masturbating, although it was uncertain which hand he was using. The victim, according to the police report, also confirmed this information.

Indecent exposure incidents on campus—and in particular the library—aren’t unheard of, said SF State spokeswoman Ellen Griffin.

“This academic year the University Police have investigated six incidents. Of the four that occurred on campus, three occurred in the library,” Griffin said.

The police report said that immediately after the incident took place, the victim notified library staff, which then called the University Police Department.

Police identified a man matching the description given by the victim near the scene of the reported incident.

A witness also positively identified Manuel, who was identified prior to questioning of the victim. When questioned, Manuel allegedly claimed to be a student and then gave a false name and birth date to the officer.

Police noted that the pants of the suspect in question were unzipped.

Upon searching Manuel, police discovered a DMV registration card and a credit card with the suspect’s legal name.

Police also discovered that the suspect had a prior conviction of indecent exposure along with a court order prohibiting him from being near the Parkmerced apartment complex.

Manuel was arrested and charged with two felony counts of indecent exposure, a misdemeanor charge of providing false identification to an officer, and disobeying a court order, also a misdemeanor.

Indecent exposure is classified as a sex crime in California and multiple convictions carry a penalty of up to five years in prison. Suspects convicted of indecent exposure laws must also register as sex offenders in a national database.