The police are conducting a hypnotic investigation into a sanitation worker who found the cell phone of a friend of the late medical student Son Jeong-min, who was found dead in the Han River.
The Seocho Police Station in Seoul today (31st) said, "In order to confirm exactly how he obtained the cell phone of Mr. A, we are conducting a forensic hypnosis investigation on Mr. B, a sanitation worker. in progress," he said.
The police are also digitally forensicing both A's and B's cell phones, and they have requested the National Institute of Forensic Sciences for blood and genetic analysis of A's phone.
Earlier, the Han River Park Banpo Information Center delivered Mr. A's cell phone to Seocho-seo around 11:29 am yesterday, saying, 'Mr. B, an environmental sanitation worker, learned and submitted it.'
The found cell phone of Mr. A was turned off, and the police confirmed that it was operating normally.
Friend A fell asleep again after talking with his parents on his cell phone at around 3:30 am on the 25th of last month, the day of Son's disappearance, and returned home alone with only Son's cell phone.
Mr. A's cell phone was turned off near the Hangang Park around 7 am on the same day and his whereabouts were unknown.
The police have conducted an extensive search considering the possibility that information to estimate the situation at the time of disappearance may remain on Mr. A's cell phone.