Background DNA on flooring: The effect of cleaning

The collection and detection of ‘background’ DNA (bDNA) from items submitted for forensic DNA sampling is a common occurrence when sampling surfaces for DNA left behind following an activity of interest. There are a number of factors that might affect the presence of bDNA on a surface, one of which is cleaning of the surface. Here, we investigate the impact of household cleaning methods on the presence of bDNA on flooring in five homes occupied by known and unrelated individuals. Two adjacent samples were collected pre- and post-cleaning from areas of high and low activity on floors within the kitchen, living room, bedro om and bathroom (i.e.

Source: Forensic Science International: Genetics Supplement Series - October 22, 2019 Category: Forensic Medicine Authors: J.B. Reither, E. Gray, A. Durdle, X.A. Conlan, R.A.H. van Oorschot, B. Szkuta Source Type: research