The bloke today was called Antonio Garrido Lestache and he's "famous" for setting up the system that is used to identify babies at birth in Spain.
He got worried that it was pretty easy to put bracelets, toe tags etc. on the wrong new baby when they were all together in a hospital baby unit. Suddenly the fruit of the union between Mr and Mrs Jones could become a Smith, or vice versa. Names have been changed to protect the innocent.
He instigated a system where, as they were slapping the baby's bottom (Forgive me, my knowledge of midwifery comes from old Westerns), they were also taking the fingerprint of the right index finger of mother and baby. Difficult after that for anyone to continually misidentify a child either by mistake or as some sort of scam.