This recent Massachusetts crime lab scandal underscores how easy it is for Americans- especially poor Americans- to be incarcerated wrongly. A chemist at a Massachusetts crime lab tampered with and falsified tens of thousands of drug samples used as evidence, forging signatures and even mixing samples to create false positives.
Of course, this is an extreme case of criminal activity within the criminal justice system- but it is also just the one who got caught. We can never know how many people are wrongfully imprisoned because of such tampering.
America Needs Sentencing Reform 