This is a Forensic science Assignment.

Please ONLY take on this assignment if you have an in-depth knowledge of the "Kastle Meyer (KM)", "Leucomalachite Green (LMG)" and Acid Phosphatase(AP) tests used in forensic science.

Please follow the assignment exactly as asked and please include within the answers the mechanisms surrounding how these chemical reactions work, there merits/limitations and the different methods in which these tests can be used on different surfaces and items what different circumstances.

Questions

1. Provide a comprehensive overview of the role of LMG and KM as reagents to locate the presence of blood. (Word limit 500 - 750)

Your answer should include:

a) The meritsand limitations of the reagents/tests and the different methods in which they can be used to locate potential bloodstains on different surfaces/items and what particular different circumstances.

2. Provide acomprehensive overviewof the tests used to locate and identify the presence of semen. (Word limit 500 - 750)

Your answer should include:

a) The different methods/reagents that can be used to locate semen.

b) Discuss why the methodology/reagents may differ depending on the case circumstances

3. Explain why KM, LMG and AP are all referred to as presumptive tests and critically appraise their sensitivity to locateand identify a particular body fluid.(Word limit 500 - 750)

Your answer should include:

a) Other substances that may react with these reagents

b) Discuss why a confirmatory test is required for semen but not for blood.

There are no need for drawing the mechanisms just explaining about them in words.