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Sookmyung, a police investigation into allegations of a leak of test questions, said that a full-time director of the department appeared suspicious that her daughters had given her test questions in advance. The twin sisters were also arrested by police officers.

Lee Hyun Young is the reporter's report.

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Police have been focusing on analyzing cell phones, computers, etc. of the full-time head of the department to see if there has been a real test leak.

Immigrant Seoul Police Commissioner Chung said, "I suspect that the full-time head of the department has informed my two daughters about the test."

A digital analysis of the cell phone, which was seized, is evidence, he added.

But I did not disclose what kind of proof I secured.

Police investigated their twin daughter for the first time on June 6. Two days later, two daughters were arrested on suspicion of sabotage.

I am accusing you of taking the test exam in advance.

Police yesterday also investigated two daughters, who complained of difficulty breathing in the first investigation, and the daughter, who was transferred to the hospital, complained yesterday that she could not finish the investigation.

The former head of the affairs office and her two daughters were reportedly denied charges.

Police will investigate school officials, including the principal, vice principal, and test teachers, and will hand the incident to the prosecutors within the month.

(Image editing: Lee Jae-sung)