system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do cops give tickets to pedestrians and people without an ID?

If you get pulled over in your car, you're required to have an ID, but if you're jaywalking or otherwise get "pulled over" as a pedestrian or bicyclist, how does the cop know who to write the ticket to? What's stopping someone from giving a fake name and address? I'm in the United States, and I'd appreciate an answer for this country, but it's not required.
gpt
Giving a fake name to an officer is also a crime. Often a greater crime then what the person was initially stopped for. 

If you don't have an ID, they ask you for a name, date of birth, social security, address. They compare that to what the police have on record, from your driver's license, SSN, etc. If none of it matches up to your physical description, they can take you to jail until your identity is established.