  Thompson reports a comparison of data from STRmix and TrueAllele. The data he
has arises from different inputs to the two software. If the input data are
made more similar the outputs become more similar. Thompson argues that the
Analytical Threshold, AT, should be varied in casework. This produced different
LRs but the analyst would be left deciding what to do with these options. This
cannot be based on the LRs but should be based on whether any movement in the
AT adds reliable or unreliable data. This is how most laboratories set their AT
in the first place. Hence it is pointless, and potentially dangerous, to
experimentally vary the AT in casework. The profile is low level and shows at
most three peaks. Thompson argues that LR results assuming that the number of
contributors (NoC) is 2 or 3 should be reported. Uncertainty in NoC should be
treated as a nuisance variable and summed out.
