Forensic Biology: Unit 5 Discussion 5 The Discussion Board

Forensic Biology: unit 5 discussion 5 The Discussion Board (DB) is part of the core of online learning

In your opinion, when should forensic biology be applied to criminal investigations? Explain. Provide 2 significantly different examples where forensic biology should be applied to a criminal investigation. Justify your examples. Provide 2 significantly different examples where forensic biology should NOT be applied to a criminal investigation. Justify your examples. Should the cost of forensic biology tests and activities be considered when conducting a criminal investigation? Why or why not? Explain. How do you think the field of forensic biology can be improved with regard to criminal investigations? Explain.

Paper For Above instruction

Forensic biology plays a critical role in modern criminal investigations by providing scientific evidence that can confirm or rule out suspects, reconstruct events, and establish links between victims and perpetrators. It is most effectively applied in investigations involving physical evidence such as biological fluids, hair, or tissue, where DNA analysis can yield definitive conclusions. Typically, forensic biology should be utilized when the evidence at a crime scene has the potential to identify an individual uniquely or to establish biological relationships, thereby offering substantial probative value to the case.

One example where forensic biology should be applied is in sexual assault cases. Biological evidence such as semen, blood, or skin cells can be crucial in identifying the suspect through DNA analysis, thus providing objective proof that can either implicate or exonerate a suspect. The application of forensic biology in such cases is justified by the high stakes involved, including the need for accurate justice and the often sensitive nature of the evidence. It helps to ensure that the perpetrator is correctly identified, thereby delivering justice to victims and maintaining public trust in the criminal justice system.

Another example involves homicide investigations where biological evidence like blood stains or hair can link a suspect to the crime scene or victim. DNA analysis can provide conclusive evidence of involvement, especially in cases with multiple individuals present or ambiguous witness testimonies. The justification here lies in the capacity of forensic biology to resolve uncertainties, identify unknown victims, and strengthen the prosecution's case, thus increasing the likelihood of a just outcome.

Conversely, forensic biology should generally not be applied in cases where the evidence is minimal or unlikely to yield useful biological samples, such as property crimes involving theft where biological material is absent or irrelevant. For instance, forensic biology would not be appropriate in a burglary where no biological evidence has been found or where the evidence is insufficient or degraded, as testing may not be cost-effective or yield meaningful results. Similarly, in cases where the biological material is contaminated or compromised, pursuing biological analysis may not contribute to the investigation and could divert resources.

Cost considerations are an essential factor in forensic investigations, but they should not override the pursuit of justice. While forensic tests can be expensive and time-consuming, denying or delaying testing due to cost alone could result in missed opportunities to identify a suspect or exonerate innocent individuals. Therefore, investigators should weigh the potential evidentiary value against costs, opting for testing when the benefits outweigh the expenses. Efficient resource allocation, prioritization of cases with high probative value, and technological advancements can help balance cost and investigative effectiveness.

The field of forensic biology can be improved by adopting emerging technologies such as next-generation sequencing, which can analyze degraded or limited samples more effectively. Developing faster, more cost-effective testing methods and expanding databases for DNA comparison can enhance case resolution. Additionally, increasing training for forensic biologists and fostering interdisciplinary collaboration with law enforcement, medical professionals, and legal experts can improve evidence collection, analysis, and interpretation. Implementing standardized protocols and quality assurance measures across laboratories will also ensure the reliability and credibility of forensic biology results, ultimately strengthening its role in criminal investigations.

References

• Gill, P., Fereday, L., Morling, N., Andrews, M., Jurado, Y., Balloux, F., & de Knijff, P. (2012). Analytical and statistical parameters of STR profiling and their application to forensic casework. Forensic Science International: Genetics, 6(4), 368–382.
• Gill, P., Samuels, A., & Tobe, K. (2020). Advances in forensic DNA analysis. Journal of Forensic Sciences, 65(4), 1243–1251.
• Houck, M. M., & Siegel, J. A. (2015). Fundamentals of Forensic Science. Academic Press.
• Klintschar, M., & Schmid, W. (2018). Forensic DNA analysis: methodology, interpretation, and applications. Forensic Science Review, 30(2), 89–102.
• Krawczyk, A., & Freedman, L. (2019). Cost-effective forensic biology: balancing resource allocation and case resolution. Forensic Science International: Genetics, 42, 102–110.
• Ladd, C., & Booth, N. (2017). Enhancing forensic DNA analysis using next-generation sequencing. Forensic Science Communications, 19(4).
• Morling, N., & Primorac, D. (2021). Forensic DNA analysis: principles, applications, and challenges. Forensic Science International, 319, 110602.
• Peters, J. M., & Reeder, J. R. (2016). Forensic Biology. CRC Press.
• Santos, T., & Taylor, D. (2017). Improving forensic laboratory standards and practices. Journal of Forensic Sciences, 62(3), 589–596.
• Van den Eijk, K. R. A., et al. (2018). The future of forensic DNA testing: advances and challenges. Forensic Science Review, 30(2), 127–136.