The Supreme Court has issued a case-by-case manual for court-appointed administrators on how to retrieve children in parental cross-border abduction cases under the Hague Convention, minimizing the use of force to avoid traumatizing the kids, the court's spokesman said.

The manual, issued June 14, outlines measures the administrators who would be assigned the task of returning children to their place of habitual residence, even by force, should take as Japan considers joining the Hague Convention by the end of next March, the spokesman said Friday.

It says the administrators "should take utmost consideration" to protect the interests of the child.