The Probative Value of DNA Analysis in Criminal Procedure Law (In the Light of Turkish, American and German Court Decisions)

Ozan Selek

Article Details

The Probative Value of DNA Analysis in Criminal Procedure Law (In the Light of Turkish, American and German Court Decisions)

Authors:

Ozan Selek

Publisher:

Marmara University

Main Topics:

Ceza Hukuku

Journal:

Marmara Üniversitesi Hukuk Fakültesi Hukuk Araştırmaları Dergisi Vol.30 Issue 2, pp.726-766

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001333935

pISSN:

2146-0590

Keywords:

Abstract:

 The discovery that DNA could be used for identification purposes in forensic science due to its unique structure, which varies from individual to individual, is a striking development. Comparison of biological samples such as blood and sperm obtained from the crime scene with the samples obtained from the defendants body makes identification possible with a high degree of scientific certainty. If it is determined that the genetic characteristics of the defendant do not match the traces obtained from the crime scene, DNA analysis will have an exclusionary effect. On the other hand, when the trace detected at the crime scene matches the genetic characteristics of the defendant, it is also necessary to examine how significant the probative value of this match is. In this context, it is important to address the issue of whether the defendant can be considered to have committed the crime based solely on DNA analysis results. This issue, which has not been sufficiently addressed in Turkish doctrine until today, was examined in the study within the framework of Turkish, American and German court decisions.

 The discovery that DNA could be used for identification purposes in forensic science due to its unique structure, which varies from individual to individual, is a striking development. Comparison of biological samples such as blood and sperm obtained from the crime scene with the samples obtained from the defendants body makes identification possible with a high degree of scientific certainty. If it is determined that the genetic characteristics of the defendant do not match the traces obtained from the crime scene, DNA analysis will have an exclusionary effect. On the other hand, when the trace detected at the crime scene matches the genetic characteristics of the defendant, it is also necessary to examine how significant the probative value of this match is. In this context, it is important to address the issue of whether the defendant can be considered to have committed the crime based solely on DNA analysis results. This issue, which has not been sufficiently addressed in Turkish doctrine until today, was examined in the study within the framework of Turkish, American and German court decisions.

 The discovery that DNA could be used for identification purposes in forensic science due to its unique structure, which varies from individual to individual, is a striking development. Comparison of biological samples such as blood and sperm obtained from the crime scene with the samples obtained from the defendants body makes identification possible with a high degree of scientific certainty. If it is determined that the genetic characteristics of the defendant do not match the traces obtained from the crime scene, DNA analysis will have an exclusionary effect. On the other hand, when the trace detected at the crime scene matches the genetic characteristics of the defendant, it is also necessary to examine how significant the probative value of this match is. In this context, it is important to address the issue of whether the defendant can be considered to have committed the crime based solely on DNA analysis results. This issue, which has not been sufficiently addressed in Turkish doctrine until today, was examined in the study within the framework of Turkish, American and German court decisions.

 DNAnın bireyden bireye değişiklik gösteren, benzersiz yapısı sebebiyle, adli bilimlerde kimlik tespiti açısından kullanılabileceğinin keşfedilmesi oldukça çarpıcı bir gelişmedir. Olay yerinden elde edilen kan, sperm gibi biyolojik örneklerin sanıktan elde edilen vücut materyalleri ile karşılaştırılması, yüksek dereceli bir bilimsel kesinlik dahilinde kimlik tespitini mümkün kılmaktadır. Sanığın genetik özellikleri ile olay yerinden elde edilen izlerin eşleşmediği tespit edilirse, DNA analizi sanığı dışlayıcı bir etkiye sahip olur. Buna karşılık, olay yerinde bulunan iz materyali ile sanığın genetik özellikleri eşleştiğinde, bu eşleşmenin hangi büyüklükte bir ispat kuvvetine sahip olduğu hususunun da incelenmesi gerekmektedir. Bu bağlamda, sadece DNA analiz sonuçlarına dayanılarak sanığın suçu işlediğinin kabul edilip edilemeyeceği meselesinin ele alınması önem arz eder. Bugüne kadar Türk öğretisinde yeteri kadar değinilmeyen bu konu, çalışmada Türk, Amerikan ve Alman mahkeme kararları çerçevesinde incelenmiştir.

Article Details

The Probative Value of DNA Analysis in Criminal Procedure Law (In the Light of Turkish, American and German Court Decisions)

Authors:

Ozan Selek

Publisher:

Marmara University

Main Topics:

Ceza Hukuku

Journal:

Marmara Üniversitesi Hukuk Fakültesi Hukuk Araştırmaları Dergisi Vol.30 Issue 2, pp.726-766

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001333935

pISSN:

2146-0590

DNA analysis

Scientific evidence

Probative value

Biological samplesDNA analizi

Bilimsel delil

İspat kuvveti

Biyolojik örnekler

Issues

Article Details

Authors: Ozan Selek

Publisher: Marmara University

Main Topics: Ceza Hukuku

Journal: Marmara Üniversitesi Hukuk Fakültesi Hukuk Araştırmaları Dergisi Vol.30 Issue 2, pp.726-766

Document Type: Article

Publication Date: 12/2024

Document Language: Turkish

Document ID (Org No.): 2001333935

pISSN: 2146-0590

Issues

Authors:

Ozan Selek

Publisher:

Marmara University

Main Topics:

Ceza Hukuku

Journal:

Marmara Üniversitesi Hukuk Fakültesi Hukuk Araştırmaları Dergisi Vol.30 Issue 2, pp.726-766

Document Type:

Article

Publication Date:

12/2024

Document Language:

Turkish

Document ID (Org No.):

2001333935

pISSN:

2146-0590