In a captivating turn of events in Japan, the court has decided to conduct an in-depth analysis of defendant Yamajima's background as a part of the ongoing proceedings. This decision marks a significant turning point in the case, attracting heightened attention from legal experts and the general public alike. The specific reasons for probing into the defendant's past remain undisclosed, adding a layer of mystery to the development of this high-profile case.

In Japan, the exploration of a defendant's personal background in court tends to trigger intense public discussion, as it often indicates that the case is taking a severe or complex turn. People are especially interested because this approach is aligned with Japan's "Rehabilitation Over Punishment" principle which focuses greatly on the individual's history.

Unlike in Japan, the personal history of the accused is frequently delved into during court cases in the U.S and EU as a part of the discovery process to better understand the motives behind the crime and to draw character profiles. The approach may, however, vary case-by-case and law-by-law in different jurisdictions.