Three-year-old boy died Suspected to be drowning with little water in the body December 4, 17:20

The man who lived in the apartment in Koto Ward, Tokyo, who was arrested for killing a 3-year-old boy, explained that he was "floating in the bath in a room where he looked away." There were few, and it was found through interviews with investigators that the drowning and death did not appear. The Metropolitan Police Department is investigating that the assault has been done on the abdomen.

In September, the Tokyo Metropolitan Police Department suspected Yuji Watanabe, an employee of a major machine maker who lived together at the time, assaulting and killing Ryutaro Yamada, a 3-year-old, in a room in Toyosu, Koto-ku, Tokyo. (34) was arrested on suspicion of lethal injury.

In the investigation so far, Susumu Watanabe explained that `` I floated in the bath in my eyes '', but there was little water found in the boy's body, and it seems that it has not drowned and died I learned from interviews with investigators.

Although there was no conspicuous trauma to the boy, as a result of investigating based on a system that can examine the body in detail even if the incidentality cannot be judged, it was found that internal abdominal bleeding was confirmed and there was a suspicion of assault It means that.

The Metropolitan Police Department is investigating that there is a suspicion that the boy seemed drowned in an accident.

"Cause of death / identity investigation method" The aim is to prevent oversight of crime

This incident was revealed by a new investigation system based on the “Cause of Death / Identity Investigation Act” that took effect in 2013 six years ago.

It was introduced because there were many cases of dead bodies involved in crimes such as murders that had been overlooked without being judged to be incidental. The goal is to improve the procedures for police to investigate the body in detail to prevent oversight of crime.

Normally, when a body whose cause of death is not known is found, the police perform an autopsy to check the state of the body and determine whether there is an incident through interviews with relevant parties.

At this stage, if the suspicion of the case is suspected, the permission of the court will be obtained, and the body will be examined in detail. However, the new investigation makes it easier to conduct a detailed investigation even if it is not.

If police have heard the opinions of forensic specialists and determined that it is necessary to confirm how they died, they can now examine the body in detail without the permission of the court or the consent of the bereaved family. is.

According to the National Police Agency, this system has so far conducted over 14,000 investigations.