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).
Currently, DNA sampling is required to be conducted through blood. testing by a medically-qualified person. The proposal would allow DNA tests to be. conducted through mouth-swabs, which can be supervised by officers of the. Children and Family Court Advisory and Support Services. Impacts of proposal.