https://www.theatlantic.com/politics/archive/2015/04/csi-is-a-lie/390897/

One Small Excerpt
n North Carolina, "agents withheld exculpatory evidence or distorted evidence in more than 230 cases over a 16-year period. Three of those cases resulted in execution. There was widespread lying, corruption, and pressure from prosecutors and other law-enforcement officials on crime lab analysts to produce results that would help secure convictions. And the