Chantalle Hermosa Jaramillo, 36, of Victorville remained in custody at the West Valley Detention Center in Rancho Cucamonga on Thursday in lieu of $150,000 bail, according to inmate records.
Detectives were tipped off Dec. 10, 2024, about allegations of inappropriate conduct with a minor by a bilingual assistant at Oak Hills High School in Hesperia, about 80 miles northeast of Los Angeles.
Following an investigation, detectives arrested Jaramillo on Tuesday.
Jaramillo was booked into the detention center for allegedly contacting a minor to commit a sex act, oral copulation of a person under 18, and unlawful sex with a minor three or more years younger than the defendant, according to the sheriff’s department.
Jaramillo no longer works for the Hesperia Unified School District, according to the superintendent’s office, and hasn’t been employed by the district for at least a month.
Detectives reached out to the public Tuesday to ask that anyone with information about the alleged crime contact the detective working the case.
Detectives believe there may be additional victims, according to the sheriff’s department.
“No additional victims have come forward as of this time,” Sheriff’s Department spokeswoman Mara Rodriguez told The Epoch Times in an email.
Jaramillo’s arrest caps the latest investigation into charges involving sex crimes with California teachers.

Drake Sherman, 33, was arrested after investigators from the Rio Vista Police Department allegedly found child sexual assault material and evidence of downloaded materials in his possession.
Sherman was an athletic director and baseball coach at the school in the River Delta Unified School District. He was placed on administrative leave as the investigation continued.
The case stemmed from information from authorities in the United Kingdom and other law enforcement authorities overseas, according to the sheriff’s department.
Sirard was a teacher at Leonardo Da Vinci K-8 School in the Sacramento City Unified School District since 1999, and took students to a Shakespeare Club and on multi-day field trips to the Shakespeare Festival in Ashland, Oregon.
He was placed on administrative leave, according to the district.