近年由於民眾人權意識提高，社會間對於法院羈押權之實施多持戒慎恐懼之態度。羈押作為最後之強制措施，如何防止其之遭到濫用而危害人權，誠然為司法改革進程中之重大課題。本文乃試以羈押裁量實質要件之認定為中心，就台開案中之相關裁定為評析，就羈押之聲請裁量程序與實質要件，探討現行制度下妥慎羈押之可能，本文並對於羈押制度之改良，主張將羈押之法定原因方面，侷限於防止逃亡及防止串證兩項，廢除重罪事由，更建議各法院應配置專門之偵查法官，專事檢察官強制處分權之審查，以強化對於檢察部門的監督與協助功能。

For the public's awakening of human rights, the court's power of custody is taken seriously. Custody is the strongest hand. How to prevent custody from been misusing and jeopardizing human rights is an important assignment of judicial reform. The question now arises from the substantial conditions of the discretion of custody, discusses the possibility of cautious custody through the concerning decisions in the Taiwan Development and Trust Corporation case. The paper suggests to refrain custody on the legal grounds of preventing offenders from escaping, and securing evidences. The paper suggests to abolish the legal ground of the serious offensive crime too. Moreover the paper suggests to deploy special investigation judge for reviewing prosecutor's power in order to strengthen the court's function of supervision and assistance to prosecutor.