Sample interview questions: What methods do you use to ensure the accuracy and reliability of forensic analysis results?
Sample answer:
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Proper Sample Collection and Handling:
- Use sterile techniques to prevent contamination.
- Maintain a chain of custody to ensure sample integrity.
- Follow standardized protocols for sample collection and storage.
- Calibrate and maintain equipment regularly to ensure accuracy.
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DNA Analysis:
- Perform DNA extraction using validated methods to minimize contamination and degradation.
- Use appropriate DNA quantitation methods to ensure sufficient DNA is present for analysis.
- Employ quality control measures, such as positive and negative controls, to detect contamination and ensure the accuracy of results.
- Sequence DNA using reliable and sensitive techniques, such as Sanger sequencing or next-generation sequencing (NGS).
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Serological Analysis:
- Use appropriate serological tests to identify blood, semen, and other bodily fluids.
- Perform confirmatory tests to verify the results of initial screening tests.
- Document all test results clearly and accurately.
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Trace Evidence Analysis:
- Use microscopy, spectroscopy, and other analytical techniques to identify and characterize… Read full answer