Question 1 Forensic Science Name of the University Author

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Singapore University of Social Sciences

Introduction to Forensics (LAW205)

Added on 2020-03-07

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Applied forensic science is the application of scientific methods and knowledge to criminal investigations and legal issues. It combines various scientific disciplines, including chemistry, biology, physics, geology, psychology, social science, engineering, etc.

Question 1 Forensic Science Name of the University Author

Singapore University of Social Sciences

Introduction to Forensics (LAW205)

Added on 2020-03-07

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Running head: FORENSIC SCIENCEForensic ScienceName of the StudentName of the UniversityAuthor Note

Question 1 Forensic Science Name of the University Author_1

1FORENSIC SCIENCETable of ContentsQuestion 1........................................................................................................................................2Question 2........................................................................................................................................4Question 3........................................................................................................................................6Question 4........................................................................................................................................7Question 5........................................................................................................................................9Bibliography..................................................................................................................................11

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2FORENSIC SCIENCEQuestion 11.1.In order to identify of a controlled substance, two tests must be performed.One test is a screening or presumptive test and the other test is an instrumental orconfirmatory test. The tests are conducted to confirm the presence of drug in the sampleby comparing it with a known standard of that drug1. Exhibit (1)matches A as it contains pharmaceutical preparations, hence, theadministrative sample selection shall be used. Since there is no presence ofamphetamine and opiates, it does not require a weight and any recorded weight is notrequired to be reported. Exhibit (2)matches B and Threshold sample selection shall be used as sufficientmaterial is present to satisfy the statutory threshold and there is a possibility ofindividual analysis of the units.Exhibit (3)matches C and hypergeometric sampling plan shall be used as there issufficient material that meets the statutory threshold but analysis of the units is notpracticable. If analysis confirms presence of controlled substance, the average weightof the three analyzed units shall be determined. Exhibit (4)matches D and statutory threshold sampling plan shall be used as there issufficient material to meet the statutory threshold and it is not practicable to analyzethe units. Exhibit (5)matches E and Hyper geometric sampling plan shall be used as althoughsufficient material to meet the statutory threshold but it is not practicable to analyze1Robertson, Bernard, George A. Vignaux, and Charles EH Berger.Interpreting evidence: evaluating forensic science in the courtroom. John Wiley & Sons, 2016.

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3FORENSIC SCIENCEthe units. Further, this sample is used to inspect the size, weight, tampering of theexhibits.1.2.The advantages of statistical sampling is that it enables the auditor to design an efficientsample; evaluate the sample results quantitatively and assess the authenticity and adequacy of theevidence obtained. A statistical sampling uses the probability of laws in order to measure thesampling risk2. The disadvantages of statistical sampling as the result are presented as range ofvalues or figures instead of one answer. The sampling process involves several steps and if suchprocesses are not done correctly, it may lead to invalid or incorrect results. Any sampling procedure that does not measure risks is known as non-statistical samplingprocess. It is advantageous mainly because it involves simple evaluation, low sample selectionexpenses and cost of training is lower than the processes involved in the statistical samplingplan3. However, it suffers from deficiencies such as it is haphazard, increase in the trainingexpenses and ready availability of computers have also mitigated. 2Saferstein, Richard.Forensic science: from the crime scene to the crime lab. Pearson, 2015.3Lewis, Jane.Forensic document examination: Fundamentals and current trends. Elsevier, 2014.

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