Forensic Evidence and DNA: considering the collection methods

Prior to collecting genetic evidence the collection surface and type of DNA needs to be considered in order to select the appropriate collection method. Not collection methods are created equal. Together these will influence the DNA recovery success rate. For instance, adhesive tape collects more DNA from textiles compared to swabs (Verdon et al. 2014; Hess and Haas, 2017). While cutouts are significant for the band on beanie-style hats (Dong et al. 2017; Dziak et al. 2018; Sessa et al. 2019). If the sample that is collected is wet, the evidence must be dried before packaging to minimize contamination, bacterial growth, and DNA degradation.

Written by: Sammy Ramey
Edited by: Sammy Ramey

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