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> with the tools available in 2020, they should be able to do this without stopping the person to ask for their license and registration.

What tools would those be? Specifically how do you positively identify the driver without checking their ID?

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You make the owner responsible. I.e. if the driver can be identified (or the owner identifies the driver) then you can fine the driver, otherwise you fine the owner.

take a picture of the driver and compare against ID photos later? for most vehicles, the set of possible drivers on a particular day is not large. it doesn't have to be perfect, just enough to make the charge stick a good chunk of the time.

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