The trainees of the LZPD NRW have helped to ensure that crime scene evidence can be found more quickly in future. Their cooperation has made it possible for new infrared cameras to be used by the police throughout North Rhine-Westphalia.

How can crime scene evidence that is difficult to find be made more visible and photographed? Three tinkerers from the Düsseldorf police have been working on this question. As there was no tailor-made solution on the market, they built their own prototype of an infrared light blood trace detection device and called it KTvisio. KTvisio primarily helps to detect traces of blood at the crime scene. It can also be used to visualize tattoos on badly decomposed corpses or traces of smoke and shoe prints on textiles. Experts from the State Office of Criminal Investigation put the device through its paces and spoke out in favor of its widespread use by the NRW police.

At the LZPD NRW, KTvisio was developed to series maturity and assembled by the IT systems electronics technician trainees. 
"We want to involve our trainees in practical projects at an early stage so that they recognize the connection between their work and the tasks of the police right from the start. And of course it has to be said quite clearly: it's much more exciting to work on real operational equipment than with teaching materials!" said Head of Department Thomas Roosen at the presentation of KTvisio in Düsseldorf.

The trainees worked on the KTvisio project for a total of four weeks. Due to the coronavirus situation, they "worked" in teams of two on a daily basis. Team spirit and good communication were particularly important. They were given brief instructions and then independently completed the required cable harnesses, lined the transport cases with foam and assembled a total of 100 devices. Security authorities from other federal states have also already expressed their interest.