Check the vehicle registration certificate or title document
Use the license plate number with your local DMV or transport authority
Run a vehicle history report through a trusted service
Contact your local motor vehicle department with the VIN
Ask the seller for proof of ownership and matching ID
Verify the VIN on the car against the registration and title
Use official police or government channels if the vehicle is abandoned, stolen, or involved in an accident
Hire a licensed private investigator or vehicle records service where legal
Check insurance documents if you are authorized to view them
Consult a lawyer if you need ownership details for a legal dispute