My original point is that the glow stick idea was poorly thought out because you assumed that anyone who had contact with any kind of magic would be affected by some kind of spell that required a security alert and should be considered mind controlled. Relying on a device that detects the presence magic in immediate proximity to an individual to equate that individual as a victim of mind control or otherwise being some kind of a threat is resource intensive and ridiculous. You have to have some method of making sure anyone who touched a ward or was close to a spell or patrolling spirit wasnt really mind controlled and every time somebody was around one of these things that is incredibly common in a high security area you spend another 60 nuyen plus whatever the costs are of verification if the person is an actual victim of mind control. Rather, the smart thing is to rely on proven methods rather than an imprecise and utterly non specific detection method. Wards that prevent passage and spirits that detect magic influences with assensing are reliable and cost effective compared to your suggestion
On the other hand, you do have a point where I didnt make my second point distinct about using a lot a of protections in a facility like spirits and wards to prevent easy wins by players with ritual magic. Sorry, I will endeavor to make that clearer in the future.
Ah. I don't think you grasped.
The only way it goes off is if a trigger (spell, astral body, whatever) came within four inches. Let's use FastJack's location, a badge. So we've got a non-awakened employee, and the trigger goes off.
This is uncommon. It doesn't say "the guard is mind-controlled", it says magic came within touching distance. It might be mind control. It might be one of the astrals on patrol passed near. It might be someone using borrow sense. It doesn't matter, what matters is that we have magic - something rare - that came within four inches of that sensor.
What happens is sort of what happens in matrix space when an alert is triggered. Things ratchet up a notch. A bunch of people (also wearing sensors) start milling around the area to see if it's a traveling spell. The contact for the astrals checks to see if one of them triggered it - and by the way tells one or two to go check out the area to see if there's an uninvited guest.
If the alarm had gone off and CONTINUED to go off, the individual might have gotten dragged into a warded area. He definitely would be watched in case he was controlled or influenced. A mage would get sent to start checking for signature traces.
It's a simple mechanism. The bacteria detects magic/astral close by, and glows. The light-sensor in the wand detects the glow and closes the alarm circuit. The alarm give an audible "beep", and it sends a matrix signal to the security office. All for ~60¥ per staff member, and all of it makes getting into the facility just a little bit harder.
It is not an automatic Maximum Response device. It's a sensor alarm, just as are the motion sensors in the lobby and the heat/fire sensors in the labs and...