CRJS478DB4 - Research Paper Example

Only on StudentShare

Extract of sample

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).
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), ...
Download paper


The correct tools must be used in collecting the evidence and the tools used should be changed frequently to avoid cross contamination. Gloves should…
Author : ondrickabrennan

Related Essays

The Uniform Crime Reports (UCR)
Finally, it is done by showing the coverage and activity of agencies that are responsible for law enforcement through counting the number of arrests and using the strength data of police employee (Siegel, 2009).
2 pages (502 words) Assignment
Stakeholder Analysis for the Democratic-Republican National Convention (DRNC)
Apart from presenting information on the strategy that the department will employ, it will also come up with recommendations that will assist the department as it seeks to satisfy the needs of its stakeholders.
5 pages (1255 words) Essay
African American treatment by the police
Most African Americans, particularly those victimized by crime is a disproportionate manner, have little trust that the police would treat them in a fair manner. On the contrary, the population believes that law enforcement officials should treat all people equally regardless of their race, gender, or religious affiliation. This issue has attracted considerable attention, in different parts of the country based on the growing rates of victimization and exaggeration y the media in the United States (University of Texas, 2013). This paper will depict the issue of victimization of African...
10 pages (2510 words) Essay
Got a tricky question? Receive an answer from students like you! Try us!