The study explores the main components of an effective criminal investigation as well as potential obstacles to such investigation envisaged in the case law of the ECtHR, namely in the frame of the domestic violence-related cases. To put particular emphasis on the case of Opuz v. Turkey (2009), referred to as “Europe's Landmark Judgment on Violence against Women” (Abdel-Monem, 2009), the study thus indicates the deficiencies in Turkish criminal procedural law that failed to meet an effective investigation and led the case to end up before the ECtHR. In order to explore the approach of the ECtHR on effective criminal investigations for women victims of domestic violence from the point of criminal procedural law, this study considers the ECtHR's unique conceptualization of positive (procedural) obligation of the State as a core proposition in combating domestic violence which calls on criminal law to take appropriate and effective action. Consequently, human rights of women emerge in criminal law to substitute the ultima ratio principle with prima ratio. Finally, the study provides some concluding remarks.

该研究探讨了有效的刑事调查的主要组成部分，以及《欧洲人权法院判例法》（即与家庭暴力有关的案件框架）所设想的这种调查的潜在障碍。为了特别强调Opuz诉土耳其一案（2009年），即“欧洲对妇女的暴力行为具有里程碑意义的判决”（Abdel-Monem，2009年），该研究表明土耳其刑事诉讼法的缺陷未能进行有效的调查，并导致该案在欧洲人权法院之前结案。为了从刑事诉讼法的角度探讨ECtHR对家庭暴力女性受害者进行有效刑事调查的方法，本研究考虑了ECtHR的独特概念。国家在打击家庭暴力方面的核心主张是国家的积极（程序性）义务，这要求刑法采取适当和有效的行动。因此，妇女的人权刑法中冒出来代替最后手段与原理初步的比例。最后，该研究提供了一些结论性意见。