In Japan, following the reports of the increase in child abuse cases, efforts toward strengthening the cooperation between the Public Prosecutor’s Office, police and child consultation centers began in 2015, and cooperative interviews between two to three parties started being put into practice. The Public Prosecutor's Office has been participating in external training programs related to methods for interviewing children that incorporate psychological expertise, as well as inviting outside lecturers to provide training in the appropriate handling of child abuse cases.
Furthermore, in 2015, Japan's first fully-staffed children's advocacy center similar to those in the US was also built in Kanagawa Prefecture (see: https://cfj.childfirst.or.jp/).
In the midst of this, a tragic incident occurred in Tokyo’s Meguro-ku in March this year in which a five-year-old girl died as a result of abuse perpetrated by her parents gives evidence of the fact that multidisciplinary cooperation is still insufficient. The public prosecutors I met 20 years ago in the US who handled child abuse cases also had disagreements at first with social workers and justice officials in matters related to handling of cases, but eventually they settled on compromises and deepened their mutual understanding. As exemplified by this, it may be inevitable for it to take some time for experts in different fields to establish cooperative structures.