AustLit

Division 4, which Don Storey notes in Classic Australian Television was 'the only drama series on Australian television to rival the popularity of Homicide', was created as a vehicle for Gerard Kennedy, who had risen to popularity playing the complicated enemy agent Kragg in spy-show Hunter, after Tony Ward's departure left Hunter's future in doubt.

According to Moran, in his Guide to Australian Television Series:

The series differed from Homicide in being more oriented to the situation and milieu of a suburban police station staffed by a mixture of plainclothes detectives and uniformed policemen. This kind of situation allowed Division 4 to concentrate on a range of crimes, from major ones such as murder to minor ones such as larceny.

Though set in the fictional Melbourne suburb of Yarra Central, 'Sets were constructed that were replicas of the actual St Kilda police station charge counter and CIB room, with an attention to detail that extended to having the same picture hanging on the wall', according to Storey.

Division 4 ended in 1976. Storey adds:

Division 4's axing was a dark day for Australian television, as within months the other two Crawford cop shows on rival networks, Matlock Police and Homicide, were also axed. It was widely believed, and still is, that the cancellation of the three programs was an attempt by the three commercial networks--acting in collusion--to wipe out Crawford Productions, and consequently cripple the local production industry.