I assume that income ws mostly for speeding. The argument being made in this thread was that higher (and apparently stupider) standards for DUI were somehow to be laoid at the feet of law enforcement because they would make money from the enforcement of those standards. The "fines" to which I referred, therefore, were fines levied for drunk driving offenses, not for traffic offenses generally.
And as I said above, around here traffic and drunk driving laws are enforced without any increase in compensation for the officer or his department. Tickets, however DO sometimes encourage the financial parts of local government to be aware that their cops are doing SOMETHING other than eat doughnuts.
As a general observation, I've noted that people complain about Law Enforcement right up to the point where THEIR ox is gored. THEN if they complain is because LEOs don't do their job as efficiently as it's done on CSI or Law and Order.
Maybe I misunderstood your comment - but I took it that you did not realize that some police forces are funded by their enforcement practices. I was just letting you know there are a bunch of them in Delaware.
And this is all traffic enforcement, including drunk driving offenses. Some of these departments are funded solely on the basis of how much they "collect."
I have no dog in this fight because I have never gotten a DUI or even a speeding ticket, but with that said I do happen to believe there is some very arbitrary enforcement of traffic laws, particularly DUI, and much of it is revenue based. But that's just one person's opinion.