It has been revealed that the investigation team handling the Jang Yoon-ki case repeatedly made mistakes, including incorrectly drafting search warrant application details and misapplying legal provisions in the prosecution transfer report.

The investigation team at the Gwangju Gwangsan Police Station, which handled the case of the high school girl's murder suspect Jang Yoon-ki, applied for a total of six search warrants between May 5 and 8.

The purpose was to seize key pieces of evidence before and after Jang's murder and to check financial account usage records.

However, two of these search warrant applications were rejected due to police errors.

These warrants were for financial account tracking to check transaction details under Jang's name and to obtain the personal information of the account holder under Jang's name.

Although stating they intended to check card usage details, the police failed to specify the types of cards, such as credit or check cards, and applied for warrants to verify personal information of Jang that they already knew, leading to the prosecution rejecting the requests.

Such mistakes were repeated during the process of transferring the Jang Yoon-ki case to the prosecution.

When handing Jang over to the prosecution on May 14, the investigation team mistakenly wrote the applied legal provisions in the transfer report.

Jang's charge falls under general murder, which is addressed in Article 250, Paragraph 1 of the Criminal Act, but the investigation team wrote Article 205, Paragraph 1.

Article 205, Paragraph 1 deals with regulations regarding the possession of opium and other substances, which is unrelated to Jang's case.

Regarding these frequent mistakes, the police explained that they occurred while referencing existing investigation documents and being rushed by heavy workloads.

A police official stated, "Although we review and approve search warrant applications and transfer reports after drafting them, it seems we failed to catch the errors beforehand," adding, "The mistakes are clear clerical errors and were not intentional."

Reported by Kim Jiuk | Video by Lee Dain | Graphics by Yang Hyemin | Produced by SBS Digital News