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Clean techniques refer to laboratory practices employed to reduce the risk of contamination. Clean techniques are employed in the forensic DNA laboratory to prevent the transfer of DNA from analyst to sample, environment to sample, and cross-contamination between samples. Contamination can adversely affect the outcome of a case; therefore, it is essential that the laboratory have procedures in place to limit, recognize, and address contamination.
Effective clean techniques procedures assist the laboratory in meeting the QAS 6.1.4, which requires that laboratories have and follow a written procedure for monitoring, cleaning, and decontaminating facilities and equipment. Specific techniques are not delineated by the standards. It is the responsibility of laboratory management to design and implement appropriate clean techniques protocols. Some recommended practices are provided.
Recommended Practices for Clean Technique |
Work Surfaces and Equipment |
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Reagents and Sample Processing |
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Good Lab Practices |
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