The core phrase used is “junk experts sneaking” into the courts. Bitemarks as usual, lead the way. The current USDOJ thinking is that everything is AOK. All but two states (California and Texas) do not consider the constitutional rights of a criminal defendant being affected by junk experts. The current basis in 48 states for a post-conviction appeal must prove the expert was intentionally lying or being deceitful during trial. This creates huge obstacles for the exonerated to receive compensation for being falsely convicted.
Washington Post – Radley Balko
Chicago Tribune – John Grisham
Washington Post – Police Field Drug testing – Radley Balko