Of course, this could be solved if there was actually a way to raise Juice without committing crimes, but so far that has yet to implemented.
There are a few ways to raise Juice without committing crimes. If you look closely at the source code or pay careful attention you'll notice them. There are very few of them though. I'll just keep them secret for now...
Just kidding. I know of 2 ways to get Juice without committing a crime. One is a successful defense in court (either a sleeper Lawyer or you defending yourself can gain Juice by being very successful in a court defense). OK, OK, that does require SOMEONE to commit a crime... but your sleeper Lawyer, if they are getting Juice, isn't the one who committed the crime.
The other way is to defeat the Conservative Crime Squad in armed combat by conquering all 3 of their bases (all your base are belong to us). I would note that if you attack or kill a CCS operative at one of their bases it ISN'T illegal or considered a crime. So actually this is perfectly legal, although it involves lots of violence. LEGAL violence. So yeah any violence at a CCS base is legal, plus you get free Juice for conquering all 3 bases for everyone in the entire Liberal Crime Squad.
Oh yeah and I thought of a third one. Backstabbing someone to death with no witnesses. This requires a knife-class weapon (Combat Knife, Shank, etc., best to go with the Combat Knife). Sure, sure, it's technically supposed to be illegal to kill someone, but if you do it right, you don't get caught, and nobody will suspect you of a crime. You can only do this if Conservatives at the site are not Alarmed.
There's probably other ways too... so OK my first example of getting Juice without committing a crime involves committing a crime FIRST and going on trial and THEN you can get the Juice for a really good defense. And my second and third examples both involve doing violent stuff that ought to be illegal, namely murder, but getting away with it and not being charged with murder or even suspected of it.