The show's attention to social issues was demonstrated in the last episode of the 1992-93 season, 'Boiling Point' , and it would be almost impossible to discuss the series without mentioning the furore surrounding this edition.
Re-scheduled to go out after the 9pm watershed, the episode was the subject of hundreds of complaints, and the outcry prompted a disgraceful climb down from the BBC, which said the programme had "gone too far".
The plot had a gang of thugs setting fire to the hospital, and the complainants said it could have prompted copycat attacks. Setting aside the fact that a similar incident had already occurred in reality, this knee-jerk response to violence on TV shows once more the Mary Whitehouse lobby's assumption of a hypodermic model of audience response: the complainants think potential yobs would not only be at home on a Saturday night watching Casualty, but would be tempted to try burning down their local hospital.
Yet the 'Boiling Point' episode was an instant TV classic. It tackled some of the most important issues of the 1990s: the lawlessness of Tory Britain, the public belief that the police can't help and the ethics of vigilante action. And it worked all this into a hugely exciting thriller which had a hospital under siege, patients dying on the hospital forecourt, and a regular character (Rob) being badly injured in a disaster.
Despite its serious treatment of important issues, the protesters could see nothing except the fact that violence took place on screen. The BBC's lily livered response - and reports that the producers have been told to tone down the next series - may mean the 1993-94 series of Casualty is more timid. That would be a great loss to television.