Publication Date


Document Type


Committee Members

Scott Baird (Committee Member), Dan Krane (Committee Chair), Jeffery Peters (Committee Member)

Degree Name

Master of Science (MS)


Criminals have been documented to launder clothing in an attempt to hide evidence; however, there limited studies on this type of evidence manipulation. This study looked at: 1) the effects of eighteen laundry additives at diluted and undiluted strengths on human blood, 2) the effects of a delay between deposit and laundering, 3) the amount of recoverable DNA on laundered clothing with different deposited volumes of blood, and 4) the transfer of genetic material within a primary load and between primary/secondary and primary/tertiary loads. There was a reduction in volume of DNA for some laundry additives. Nevertheless, all genotyped samples were consistent with expected profiles. The results show that DNA can be transferred between a primary and a secondary load but not to a tertiary with the best locations for genetic transfer recovery being towels and socks. This study helps further the understanding and treatment of DNA on laundered clothing

Page Count


Department or Program

Department of Biological Sciences

Year Degree Awarded


Included in

Biology Commons