Re: Let's think out side the algorithm....
I like the idea, but the risk is that people start trying to claim that reward for things that don't deserve it. These incentives have gone wrong before, so you have to have a measured and well-tested approach before you do it. Also, you need to assess enough fines that there is something to reward them with.
For an example of the way this ends badly, several religious trial systems, where people weren't guilty of any real provable crimes (witchcraft, a religion the government didn't approve of, etc.) were run on the basis that the accuser would get some of the property of the victim if they were proven guilty. Since such trials were performed using the "torture them until they confess or die" tactic, they got a lot of guilty verdicts which meant that accusing someone who didn't have an unusual way to hit back at you was likely to earn you a chunk of their property after they'd been tortured. When this incentive was removed, there were a lot fewer accusations. I don't expect governments to run reports of criminal activity like that, but still where there is an incentive, someone will try to get it without having the requirements and the system will have to plan for them.