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The murder of my ex-husband convinced the police that the initial investigation had been insufficient in relation to the abandoned case investigation. Three investigators, including the former police chief, were under investigation.

I'm Jung Sung-jin.

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After a month of on-site inspections, the police decided that the initial investigation was insufficient.

The police department on-site inspection team says the Jeju Eastern Police Station, which investigated the incident, wasted time by the lie of the suspect, the final witness.

In addition, we did not secure CCTV around the pension, which was the place of crime, and confirmed that the site was not properly preserved.

He said the investigation was missing, but he had to set up CCTV checks with the possibility of a crime in mind.

The fact-finding team also pointed out that the investigation failed to obtain evidence of Zolpidem, which was prescribed on the Internet during the seizure search.

At the time of the arrest, the video was also released to the media without proper procedures.

The National Police Agency's fact-finding team will request inspections by three investigators, including Park Dong-nam, former head of the Jeju Eastern Police Station, asking for responsibility for investigating the initial failure and video leaks.

The police said they will operate a comprehensive response team for initial crisis management to prevent recurrence of insolvency investigations and improve the system and strengthen education, including the missing investigation manual.