A time line on the growing trends for future increase of innocents being convicted. Police forensics clearly has a hand in this. Racial targeting is another.
Although Gross says there’s no way to know an exact number, “at least tens of thousands of people who are in prison are likely to be innocent,” he said. If just 1 percent of the prison population were exonerated that would be upward of 20,000 people. For context, a study published in 2014 made “a conservative estimate” that 4.1 percent of those sentenced to death are innocent.