Police said the school received an email threat last Wednesday that mentioned explosive devices on campus.
An extensive explosive detection search was conducted by a K-9 team and multiple law enforcement agencies and they found no devices at the school.
On Tuesday, the school received a similar threat from the same suspect, BPPD said.
With assistance from the FBI, BPPD detectives were able to identify the suspect, whose name has not been released, and take him into custody.
Anyone with information is asked to contact Detective Andres Villalobos at (626) 960-1955, ext. 418.
This comes as another school in Orange County also received what authorities called a "credible threat." Mater Dei High School in Santa Ana will be closed through the end of the week as a result.