E. Mechanical receptors are located in the lungs, upper airways, chest wall, and diaphragm which prevent overdistension of the lungs. F. Respiratory defense mechanisms: 1. filtration of air by the upper airways 2. mucociliary clearance system -which is decreased by infection, atropine, alcohol, dehydration,
However, one. of the most challenging aspects of forensic DNA analysis is the. interpretation of low-level testing results where it is difï¬cult to. distinguish reliably between noise and signal from template DNA. that is associated with an evidence sample (3,4).
In one such case, the Supreme Court of Minnesota acknowledged the scientific acceptance of DNA testing, but stated that âadmissibility of [DNA] test results in a particular case hinges on the laboratory's compliance with appropriate standards and controls.â 8 In this case, the laboratoryâs protocol and methodological validation process were deemed insufficient and the evidence was dismissed.