According toareportreleasedin 1938, theJapanesearmyknewthatbrokerspickedbyJapanesetroopsstationedinChinawererecruitingsexslavesthroughamethodsimilartokidnapping, andorderedthesoldierstouse cautioninselectingbrokers.(웹 검색 예문)1938년작성된이문서에따르면육군성은중국파견 일본군이선정한업자가유괴와흡사한방법으로위안부를모집하는것을알고있었으며, 신중하게업자를선정하라는지시도내렸다.