The Shipman Effect

It's often claimed that palliative medicine has made such progress in recent years that everyone should be able to have a pain-free death. Yet many people who see family members die tell a different story - a story of pain and misery due to inadequate pain control.
Gerry Northam examines to what extent this is due to the Harold Shipman Effect. Has the fact that the serial killer murdered his patients with drugs normally used legitimately to alleviate pain at the end of life left many doctors over-reluctant to prescribe and administer them?