STK Sperm Tracker

STK® Sperm Tracker

Forensic Tools in proud partnership with AXO Science is able to offer our local clients access to STK® Sperm Tracker; due to the fact that detection of Semen Traces from Sexual Assault Evidence Sexual assaults are usually unwitnessed and being able to detect offender’s semen traces on evidences plays a crucial role in corroborating victim’s allegations during the official investigation phase.

It is often a difficult task to locate semen traces from sexual assault evidence within a short period of time. Due to the fact that many false positive traces can occur with the use of Forensic Light Sources for the specific purpose of tracing semen evidence as well as the time and costs involved in excluding false positives from the analysis, STK® Sperm Tracker would be the ideal solution. Moreover, according to fabric and colour, one can admit that a very important percentage of semen traces are not being detected by alternate light sources available on the market.

STK® Sperm Tracker was developed in a collaboration between AXO Science and the French National Institute of Scientific Police (INPS/LPS69) and ICBMS (UMR5246)

STK® Sperm Tracker (INPI DSO 2017000128) ISO 18385

Advantages

• Sensitive: do not miss any single semen stain by using the most sensitive technique available 
• Specific: do not waste time & money with false positive, only semen will show, even if mixed with other body fluids
• Non-Toxic: human and environmentally friendly. Get rid of carcinogen, time-consuming AP reagents
• Easy and Ready to Use: simple and rapid 4 steps protocol

4 Step Process

  1. Using a sprayer, wet absorbing side of a piece of STK with demineralized water
  2. Cover area to be tested with wet absorbing side against the item. It is possible to analyse both sides at the same time by sandwiching the item
  3. Press for 3 minutes
  4. Read results with a UV light (365-366nm) Only semen stains will glow in a blue color


STK Sperm Tracker Spray

Find Semen directly on the scene - Sexual assaults are usually unwitnessed and being able to detect offender’s semen traces on evidences plays most of the time a crucial role in corroborating victim’s allegations during investigation phase. CSI often face the difficult task to locate offender’s semen.

But... How to be sure no evidences are missed? How to proceed when not everything can be sent to the lab for further screening? How to save time and improve investigation success rate?

To answer all those questions, AXO Science developed STK Spray, a simple solution to be sprayed directly on the scene and locate assaulter’s semen specifically. Highly sensitive, easy to use, safe both for the user and for DNA collected, STK Spray is the perfect product for CSI while investigating rape cases.
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