The Houston Police Department has ended its longstanding practice of using $2 chemical kits to make drugs arrests, a policy that had contributed to hundreds of wrongful convictions in recent years. In announcing the change, Houston Police Chief Art Acevedo said the department was abandoning the use of the kits, known formally as chemical field
Houston Police End Drug Tests That Produced Wrongful Convictions
The cheap kits were often the sole evidence used to win guilty pleas, against the innocent as well the as guilty.