I know that some games like jailbreak have bounties for when you rob or kill police officers. My suggestion is that if a criminal is able to rob multiple stores, banks, ATMs, and/or other shit multiple times while evading a vast army of LEOS they could automatically be given a bounty of a certain percentage of the amount they robbed.
If a police officer arrests the criminal, they would collect the bounty and could choose to share it with anyone who helped them achieve the arrest. If the bounty holder leaves the game, their bounty resets. lemme know what yall thing