Abstract
Knowledge of DNA-TPPR in various settings and circumstances can aid sample targeting and collection, interpretation of DNA profiles, and activity level assessments. The present study looks at a number of items/surfaces in a single-use office space that was sequentially used for one hour by the owner, a temporary occupant (intruder), and the owner (3 h total). Video recording allowed evaluation of contacts made by participants to assist targeted sampling. In a majority of samples, the owner of the office space was the major contributor regardless of the last person to have contacted an item/surface. The DNA of the intruder persisted after contact on 7 of 19 items/surfaces that the owner of the office space re-used. Interestingly, the participants picked up DNA from each other on hands and clothing via indirect transfer.
Original language | English |
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Pages (from-to) | 311-313 |
Number of pages | 3 |
Journal | Forensic Science International: Genetics Supplement Series |
Volume | 8 |
Early online date | 26 Oct 2022 |
DOIs | |
Publication status | Published - Dec 2022 |
Keywords
- DNA
- DNA-TPPR
- DNA transfer
- DNA persistence
- DNA prevalence