The effect of surface type, collection and extraction methods on Touch DNA

There are different variables that affect the success of Touch DNA recovery, including surface type, the collection method used and extraction techniques. This experiment investigated how a range of porous and non-porous surfaces, different DNA collection (cotton swab, nylon flocked swab and SceneSafe Fast ™ minitape) and extraction methods (PrepFiler Express BTA™ and QIAamp® DNA Investigator) affected touch DNA recovery.
Source: Forensic Science International: Genetics Supplement Series - Category: Forensic Medicine Authors: Source Type: research