The judge frames the red light camera scheme as a revenue generating scheme, not a public safety measure.
Additionally, "A distinctive feature of the statutory scheme is its assignment of guilt to the registered owner rather than the driver of the vehicle". and "If there are multiple registered owners, the citation is issued to the 'first' registered 'owner'". and the person whom the citation was issued to must sign an affidavit that includes the name, address, dob, of the person who was actually driving. The judge says this "...abandon(s) centuries time honored protections of hearsay as substantive evidence.".
"It is a foundational rule of constitutional due process that the government must prove every fact necessary to constitute an offense beyond a reasonable doubt before a person may be adjudicated guilty of a crime".
"Although nominally civil, traffic infraction proceedings retain every substantive hallmark of criminal prosecution..." "under Feiock, such proceedings are sufficiently criminal in form and function to invoke the full protections of due process..." - that's probably the core of the reasoning here.
"Section 316.074(1) provides in relevant part that "The driver of any vehicle shall obey..."" - the driver, not the registered owner.
I highly recommend reading the order. It's easy to follow and aligns with my understanding of the law within the USA.
Tickets issued by these cameras are civil penalties issued to the owner of the vehicle, like parking tickets, rather than a criminal moving violation. This means the tickets are just as constitutional as parking tickets. It also means penalties are limited to fines and can't impact your driving privilege or insurance.
Hopefully other states can follow this pattern. Consistent, low-impact enforcement is better at preventing unwanted behavior than the rare and severe but also capricious enforcement performed by human police.
In my own experience, when they took down the red light cameras in my area now people are not afraid to run red lights ~2 to ~3 seconds after it's red. See this kind of thing on a regular basis. Every now and then there's a serious accident.
The question in those cases came down to if the operators of the cam can be considered "accusers."
They widely considered that of course the cam itself didn't count as an accuser, but the question was how "automated" the system was. If there was a human who flagged it, the system was fine, if it was fully automated, they were unconstitutional.
Many states don't share this opinion, but an interesting argument nonetheless.
The court says that criminal rules should apply because points are at stake, while civil penalties are usually restricted to fines, but I don't buy that argument. We have plenty of non-money civil remedies. Code enforcement departments can require changes to property. Family courts can make all kinds of requirements. It's not outside of constitutional bounds for a traffic rule to result in forfeiting a license without criminal proceedings.