title: Whistleblowing saves lives.
abstract: A FORMER staff nurse, Colin Norris, was convicted in March of murdering four elderly patients who were in his care at The Leeds Teaching Hospitals NHS Trust. He had injected them with lethal doses of insulin and was prevented from killing again only after a professional colleague noticed something amiss. Detective chief superintendent Chris Gregg said: 'If it was not for the actions of Dr Emma Ward more patients could have died.'