Yes, briefly, we can use sensors. For example, we use microchips in boots essentially. If people do not change their boots when they need to go from one zone to another zone, in the anteroom that will be detected. If they do not activate the Purell dispenser to clean their hands, that can also be recorded. It can be associated with them. To get in they could have a magnetic card to identify themselves. We have ways of gathering data using that information, and then we do training to improve compliance.
You can say it's mandatory and you need to have this or that, but we're dealing with human beings and human nature. You need to work on technologies that are human nature-proof. I didn't say idiot-proof but human nature-proof. Using sensors is one good way to go.