Distribution of the locus peak height intensity from Identifiler profiles generated using the optimized fast PCR protocol. The results are presented using a box-plot, where the boxes represent, for each locus, the range of values from the bottom quartile (25%) to the top quartile (75%) and the median is depicted an intersecting line within the boxes. Complete profiles from 133 samples were included in this analysis. The lowest end of the whiskers represent between 1.5 time the IQR or the minimum observed value still within 1.5 IQR, and the highest end of the whisker represent 1.5 times the interquartile range or the maximum observed value still within 1.5 IQR. Values outside 1.5 IQR (outliers) are shown by asterisks with their value in RFU indicated. IQR: interquartile range; RFU: relative fluorescence units.