The influence of contact force on forensic trace collection efficiency when sampling textiles with adhesive tape.

Purpose: DNA is a highly valuable lead to identify people who were possibly involved in a crime. Even by small contact events, minute amounts of DNA ('trace DNA') can be transferred from a DNA source to an evidentiary item, which can be enough for a successful DNA analysis. The focus of this research is to get more insight in the collection of trace DNA from textiles by 'stubbing', which is a tape-lifting method using double-sided tape placed on a stub.