A local youth education company is picking up the pieces after one of its own was arrested on site last month.

Alejandra Acosta, 29, was arrested on charges of lewd and lascivious acts on a child by plainclothes officers on March 26 at 11:22 a.m. at the Champion Kinder International School on Sunnyvale Saratoga Road.

Sunnyvale police received the report from Child Protective Services, according to Sunnyvale Department of Public Safety Capt. Dave Pitts. Pitts said only one victim has been reported, and he or she was not associated with the preschool where Acosta was arrested.

She was arrested without incident, Pitts said.

Acosta, a Sunnyvale resident, was taken to Santa Clara County Jail, and her bail was set at $50,000. The case was reviewed by the Santa Clara County District Attorney’s Office and was rejected on March 28 for undisclosed reasons, according to supervising deputy district attorney Stacey Capps.

Since the incident, Jane Yang of CKIS has been having to explain to parents what happened.

“The public should know that our students’ safety is regulated and protected by a strict hiring process,” Yang said. “All CKIS staff members must pass a criminal background check before being hired. Alejandra passed this same background check. There’s no way that we could have predicated such matters. Such a case can happen for any business.”

Yang stated Acosta was not hired as a teacher but as a floating assistant. Other than very limited class substitute duties when other staff was off, Acosta didn’t have formal classroom teaching duties.

Yang added Acosta was terminated from the school at the same time she was arrested.

“She is no longer with us,” Yang said.