This one isn't a joke
A man spends his entire life up until age 48 donating money to charity, giving blood at least once a month, goes to jury duty, and doesn't lie to get out of it, active member of his community and many positive things come out of his involvement.
But... one day, he walks by a homeless man, and trips and spills the man's coffee in the middle of winter. The homeless man was actually crazy, and he stalks the generous man for weeks. Weeks turn into months and eventually into years. It finally gets to the generous man and he kills the homeless man. He buries him in a field and is eventually caught.
The judge and jury won't get to hear about his positive influence on the world -- only that he DID in fact kill a person.
Doesn't seem fair that he gets the same, or maybe worse, sentence than an 18 year old who killed 3 of his classmates and never helped another person in their life.
New laws. Rather than the old type, all of which only tell you what you can't do, they are changed to what you shouldn't do, and the new set that says things you should do. Both sets go on file. You get points (varying degrees of acts in both directions) and if your score goes below 0 then you go to prison for as many years as points you've got under 0.
Before you condemn this by saying " Well that will encourage crime! People will do good things to balance their scores, and then go and commit more crimes" I ask that you consider that statement.
Crimes will be committed. That's a fact. That's why we have police. Because we know it's going to happen. But at least this way, even the criminals help out, and if they don't, we bag 'em up, just like before.
Obviously I don't know everything, so suggestions or addons are encouraged.