When playing Palworld, you're going to find many things in the world as you continue to explore. Sometimes, there's no other option than to just kill things that you find in the world. Why? Because you're a small walking arsenal and why not. In Palworld there are different groups of bandits and criminals ruling the islands. Sometimes, they have bounties.
As you explore the islands you'll find wanted fugitives which are criminals on the islands that have bounties on their heads. They work similarly to alpha pals, in that they'll have a big red HP bar that appears on the top of the screen when fighting them.
You can either defeat or capture these fugitives in any way shape or form. Once either is done, they will respawn if you would like to grind for XP or drops.
For the locations of these enemies, check out this Reddit post with all of them compiled. This will save you time exploring or talking to Intel Dealers about their whereabouts.
Main Island:
Feybreak:
Once defeated, the fugitives will drop Bounty Tokens. Higher level fugitives will grant more of these tokens. You can take them to a Vigilante Bounty Officer, in places like Fisherman's Point or the Small Settlement.