In Ohio it's pretty weird. The law enforcement agency (the officers) only get fines. The municipality or municipal court can levy court costs. There is a marginally legal practice in Ohio called "Mayor's Courts". I'm not really sure what the legal issue is, but Mayor's Courts universally suck. You can, I believe, make a request that the matter be handled in a true municipal court, which tend to be run by counties---I think. Now, the weirdest thing in Ohio speeding law is that the fine for 0-10 over is zero dollars. (I can't find a legal reference, so this may not be correct.) So the police have no incentive to ticket you for 0-10 over, unless it's also a Mayor's Court, because their "little town" will be able to pocket the court costs.
I'm going from memory here, but typical fines are $20-$80. But, court costs are a minimum of $80---that's the least I've ever paid. Typical is $160. I've heard of $240.
One thing about Ohio law is that there is no reasonableness defense in Ohio as there is in places like California. In Ohio, the officer basically has to witness you speeding. There is no "I was going with traffic" defense. In some states, they can't ticket you unless you are going above a statistically-determined percentile. Even in states with those laws, I suspect the agencies know when the studies are being done and put out a lot of officers to artificially depress traffic speeds so they can game the statistics.
Ohio has an ongoing legal battle over red-light cameras and unattended, automatic speed trap cameras. These are trying to exploit a loophole in the law. In the US, typically, we have a right to confront the accuser. So if the officer fails to show up in court, the judge has to dismiss it. This rarely happens in my experience. But the red-light cameras and speeding cameras have no one to testify in court who was there (a "witness"), and that *might be* an infringement of the right to due process. The fourth amendment says that property (which includes cash) cannot be taken without due process, and "Due Process", some claim, absolutely must involve a court. The red-light/speeding cameras try to get around this by calling it a civil infraction rather than a criminal infraction. That way they can have a kangaroo hearing (mine was run by an actual judge, but not acting as a judge, if you can believe that), introduce a swore affidavit by an officer who watched the video, and find you guilty of the civil infraction. Normally a swore affidavit could not be introduced as evidence because you can't cross examine a piece of paper. I'm not an attorney, but I do try to take tickets to court where I represent myself ("pro se") in speeding ticket cases. One loss, one victory. I was so disgusted in a Mayor's Court last year that I plead guilty to save $100 in court costs.
I saw people get sent to jail for not being able to pay court fees, which is almost certainly unconstitutional and certainly immoral. NPR did a whole series on this:
http://www.npr.org/series/313986316/guilty-and-cha...
I saw the prosecutor claim repeatedly that the defendant (with no attorney) didn't need a translator because the officer (who was not there) wrote that the defendant spoke good English. The court's (i.e., the Mayor's) reaction did not inspire confidence in his skills as a judge. I held my tongue, but I honestly wish I had made a scene.
It's the "court costs racket" that entices small towns (like Norwood (!), which isn't exactly a small town) as well as entire counties (I'm talking to you, Butler County) to write as many tickets as possible. It's been really bad since the economic crisis started.
I'm not a attorney, but for my next ticket from the Ohio State Police, I'm planning, if the judge will allow it, to subpoena records from OSP regarding cell phone interception technologies (like Stingray) and direct data from cell phone providers, like Verizon, to ask the officers in court (when they're under oath) if they used products of technologies like that. (You're usually not allowed to go on a fishing expedition---You have to limit questions to the exact event that is on trial, so it might not work.) A few summers ago I got two tickets in about a month. The second was extremely suspicious. I know I'm slightly paranoid anyway, but I'm almost certain they do.
This reminds me that as I was driving home *tonight*, I planned to research if the traffic to-and-from cell phones for driving apps like Google Maps, Apple Maps, Waze, etc, is encrypted. I'd feel a whole lot better if it were.
There are a few good things in Ohio regarding speeding:
1. 0-10 is usually safe.
2. Unmarked cars cannot be used for speeding enforcement except in very rare cases. One loophole is that the superintendent of the state highway patrol's choice of livery for Ohio State Trooper vehicles is automatically accepted, even if it's chosen to hide those vehicles as much as possible.
http://codes.ohio.gov/orc/4549.13
3. There is a prima facie law that says, essentially, "Roads that appear to be (certain types of roads)... have to have speed limits that match." So perhaps you can get the transition zones (55-to-35, for example) thrown out. Section B, here:
http://codes.ohio.gov/orc/4511.21
4. If you're going to church, and you get pulled over, make sure you tell the officer that you're going to church. There is a law. I've read it. I'm not convinced it says what people say it says, but I've heard it works.
http://codes.ohio.gov/orc/2331.11