Personal data protection is seen to be subject to the judgments of judicial organs in parallel with the developments in the normative field at the national and international level. With regard to the Turkish legal system, the judgments of the European Court of Human Rights (ECtHR) and the Turkish Constitutional Court (TCC) are of particular importance. The connection made with the European Convention of Human Rights (ECHR) in the Turkish Constitution in terms of individual application, and the TCC’s references to ECtHR judgments in its judgments concerning individual applications necessitate the conformity of the TCC judgments concerning individual applications to judgments of the ECtHR to be examined. In this context, this article examines the judgments of Bülent Kaya and E.Ç.A. concluded by the TCC as a result of an individual application regarding the recording and storage of personal data concerning criminal convictions and criminal proceedings to the General Information Collection (GIC) system. Although there is an endeavour to present an evaluation of the GIC system and the Information Collection Directive regulating recording of data to this system and there is mention of other judgments of the TCC concerning personal data protection in the article, the main focus is to examine the conformity of the Bülent Kaya and E.Ç.A. judgments to ECtHR judgments. As a result of this examination it has been concluded that the aformentioned judgments do not comform with ECtHR case law.