Recovery technique NanoVue (SD) Quantifiler (SD) Single swabbing (n=18) 2.89 (1.14) 0.30 (0.6) WD double swabbing (n=18) 2.77 (1.35) 0.13 (0.05) DW double swabbing (n=18) 2.00 (2.00) 0.16 (0.04) PCR squares (n=18) 2.38 (2.20) 0.04 (0.025) Flocked swabs (n=18) 1.27 (0.98) 0.05 (0.0008) Taping (n=18) 4.47 (2.48) 0.21 (0.1)

Table 1: Showing the mean quantity (ng/μl) of DNA obtained from a range of DNA recovery techniques. Both NanoVue Spectrophotometry and Quantitative PCR (Quantifiler) data were used. Values shown are ng/μl with standard deviation in parentheses.