Throughout the U.S., usually right after a baby is born, a doctor or nurse takes a pinprick of blood from the newborn — often from its cute, little feet — to screen for diseases or genetic defects. These blood tests are mandatory and create a health and genetic database. But who gets access to that genetic information, and for what purpose, is at the center of several legal fights. In New Jersey, the Office of the Public Defender recently sued the state testing program after police allegedly used a newborn’s blood sample to help them obtain a warrant for the father’s DNA. “Marketplace Tech’s” Kimberly Adams spoke with reporter Nikita Biryukov at the New Jersey Monitor, who broke the story.