刑事司法互助，除能滿足各國實現對犯罪的個別刑罰權需求，在國際合作抑制麻醉藥品的非法交易、人口買賣、組織性犯罪、掩飾犯罪所得收益以規避沒收的洗錢等，經常呈現為跨國性犯罪的不法行為方面，更具有重大的意義。不過，在致力於國際合作抑制犯罪的同時，不應忽略，將境外取得的證人供述，應用於刑事司法程序，對刑事被告受憲法保障的正當程序可能帶來的影響。此外，為抑制犯罪而展開的情資交換，尤其是著眼於防範洗錢，在國際間傳遞的財務等資訊，也會對個人資訊自決權構成莫大的威脅。基於此，在追求國際合作打擊犯罪的同時，及早建立有效防阻執法機關為處罰犯罪而便宜行事的完備法制，也是當前迫切的課題。

Criminal justice mutual -aid is intended to satisfy individual penalty requirement . I t means a lot more, in addit ion, in terms of reduct ion of i l l egal i n toxicant t rade, population smuggling, organized c r imes , money laundry to cover up crime- associated income in an attempt to shun confiscation. Moreover, while we carry out international cooper ation to e l iminate cross-border c r imes, （ 1） how i s witness’ t e stimony derived overse a s , （ 2） how i s i t appl ied to criminal just ice procedures, （ 3 ） what impact i s i t o n t h e consti tutionally accorded protection on the alleged are areas tha t shouldn’t be i gnored. Intelligence exchange involving financial information transmission among nations is designed to inhibi t crime, especi ally on prevention of cr ime- related laundry, may pose serious t h reat to i ndividual discretion. Hence how to erect a complete legal framework prevent ing the law authori ties to resort to expediency in taking punitive measures is my concern and needs to be heeded.