Only running in the lab now. Pilot deployment at Latvian, Hungarian and Greek borders in August 2019 at some specific border points. Standard GDPR related items apply: informed consent for testers, right to opt-out at any time. This is only one of a number of projects funded under the Horizon 2020 EU.3.7 program (total funding: €1.7B):
Specifically this fun project fits into the “Novel mobility concepts for land border security” sub program: https://cordis.europa.eu/programme/rcn/665116_en.html
And here are some other projects in that area, including scarily-named initiatives like PROTECT, CIVILEX, iTRACK, SafeShore and no doubt CASE NIGHTMARE GREEN:
All-in-all this is the kind of semi-academic, semi-industrial projects that the EU has been investing in for the last 30 years. It will have some spinoffs, some people will get their PhDs based on the tech, various Researchers will have their stipends paid, that kind of thing. I’m putting my dollar down on some interesting spinoffs but no actual functional system.