Most footwear marks made in blood on a surface such as fabric tend to be enhanced in situ rather than physically recovered using a lifting technique prior to enhancement. This work reports on the use of an alginate material to recover the impressed footwear marks made in blood and deposited on a range of fabric types and colours. The lifted marks were then enhanced using acid black 1 and leuco crystal violet with excellent results.This presents a new method for the lifting and recovery of blood impressions in situ from crime scene followed by subsequent mark enhancement of the lifted impression.
Farrugia, K. J., NicDaéid, N., Savage, K. A., & Bandey, H. (2010). Chemical enhancement of footwear impressions in blood deposited on fabric - evaluating the use of alginate casting materials followed by chemical enhancement. Science & Justice, 50(4), 200-204. https://doi.org/10.1016/j.scijus.2010.06.006