1,339
28
Essay, 2 pages (350 words)

Crjs478db4

DNA contamination In order to avoid contamination of DNA evidence it is important to observe proper guidelines in the collection of such evidence. The correct tools must be used in collecting the evidence and the tools used should be changed frequently to avoid cross contamination. Gloves should be changed after collecting one piece of evidence and before collecting the next piece to avoid cross contamination (Butler, 2011).
The most significant contamination issue with regard to DNA testing is contamination during the PCR process. The most likely contaminants here are sample contaminated with DNA from the environment, contamination from other samples and contamination from previous chain processes. These contaminants can affect the entire results of DNA profiling and should be avoided. In regard to analysis of DNA the most significant contaminants involve cross contamination which arises from non-related samples other than the sample being tested. The effect of these contaminants is that it can skew the results of the test and give inaccurate results (Butler, 2011).
Some notable court cases involving contamination of DNA include the O. J Simpson case and the Amanda Knox case. In both these cases the court struck out DNA evidence because of the possibility of the evidence being contaminated. The outcomes of these cases are favorable for contamination of DNA evidence compromises the results of the test and renders the evidence unreliable and as such should not be used to convict suspects.
DNA profiling is an important aspect in the criminal justice system because it provides the courts the possibility to determine whether blood, saliva or other biological substances located at the scene of crime belong to the person accused of committing the crime. The use of DNA evidence is essential to the courts as it is an accurate method for suspect identification (Remillard, et al. 2013).
Reference list
Butler, J. M. (2011). Advanced Topics in Forensic DNA Typing: Methodology: Methodology. Academic Press.
Remillard, E. M., Taylor, L. K., Layshock, J., Van Cuyk, S., & Omberg, K. M. (2013). Detecting laboratory DNA contamination using polyester-rayon wipes: A method validation study. Journal of microbiological methods, 92 (3), 358-365.

Thank's for Your Vote!
Crjs478db4. Page 1
Crjs478db4. Page 2
Crjs478db4. Page 3

This work, titled "Crjs478db4" was written and willingly shared by a fellow student. This sample can be utilized as a research and reference resource to aid in the writing of your own work. Any use of the work that does not include an appropriate citation is banned.

If you are the owner of this work and don’t want it to be published on AssignBuster, request its removal.

Request Removal
Cite this Essay

References

AssignBuster. (2022) 'Crjs478db4'. 26 September.

Reference

AssignBuster. (2022, September 26). Crjs478db4. Retrieved from https://assignbuster.com/crjs478db4/

References

AssignBuster. 2022. "Crjs478db4." September 26, 2022. https://assignbuster.com/crjs478db4/.

1. AssignBuster. "Crjs478db4." September 26, 2022. https://assignbuster.com/crjs478db4/.


Bibliography


AssignBuster. "Crjs478db4." September 26, 2022. https://assignbuster.com/crjs478db4/.

Work Cited

"Crjs478db4." AssignBuster, 26 Sept. 2022, assignbuster.com/crjs478db4/.

Get in Touch

Please, let us know if you have any ideas on improving Crjs478db4, or our service. We will be happy to hear what you think: [email protected]