Impregnated paper for fabrics screening
within the lab
What is STK Lab?
Mapping technics often use toxic reagents that are time consuming and dangerous to use both for DNA and the operator. Alternate Light Sources are known for generating lots of false positives and also... false negatives.
As semen is most of the time deep in the fabric, STK Lab pre-impregnated paper is the most efficient solution to find semen traces on any textile evidence.
STK Lab is ready to use, non-toxic, highly sensitive and specific to semen. It is the perfect solution to screen clothes, bed sheets and textile evidences.
Fully compatible with DNA extraction techniques, STK Lab is being used in routine in crime laboratories in the world for several years now and helped to solve thousands of rape cases.
Tested in parallel with Crimescope (CSS filter and orange and red glasses) STK Sperm Tracker clearly showed its ability to overcome fabric constraints (improved sensitivity) and to carry out two operations in one: both pinpoint stains and reveal their acid phosphatase activity. More reliable, faster and easier to set than the method currently in force within the INPS, STK Sperm Tracker represents a real step forward in the forensic field.
Both the STK Lab and Spray worked very well. I tested the products on undilute semen stains on a laminate tile and two dark polyester fabrics. The fluorescence was quickly and clearly visible.
The investigator that studied the STK sperm tracker paper is very happy with the product.