While other states may also collect DNA, it is amongst the worst since they do not later destroy it. >Some states destroy the blood spots after a year, 12 stat

While other states may also collect DNA, it is amongst the worst since they do not later destroy it. >Some states destroy the blood spots after a year, 12 states store them for at least 21 years. >California, however, is one of a handful of states that stores the remaining blood spots for research indefinitely in a state-run biobank.