Two Massachusetts drug-testing laboratory technicians are caught tampering with and falsifying drug evidence, and prosecutors are reluctant to disclose the full extent of their criminal beha... Read allTwo Massachusetts drug-testing laboratory technicians are caught tampering with and falsifying drug evidence, and prosecutors are reluctant to disclose the full extent of their criminal behavior.Two Massachusetts drug-testing laboratory technicians are caught tampering with and falsifying drug evidence, and prosecutors are reluctant to disclose the full extent of their criminal behavior.