Not really possible to have two people with the exact same fingerprints. SOme things might be similar but not even identical twins have the same fingerprints, so technically it would be impossible/highly unlike for two people to share the same fingerprints. The same cannot be said by DNA, as twins might have the same DNA, so in case they are involved in a crime they can get mixed up apparently. The fingerprint designs are formed when the kids are still in their mom's wombs, so the designs and patterns are formed while the fetus move inside the womb, so each baby will have a different set of fingerprints. The designs can also vary according to DNA and other particular details