Jeffrey Blackburn was a fictional private investigator who was the hero of a series of stories by Australian writer Max Afford.
According to one writer "His Jeffrey Blackburn features were probably the most popular of their type to originate in Australia; they were usually fast moving, suspenseful, intricately but clearly worked out and invariably well written.
"I had a good plot, but I wanted a character —not a gentleman detective, but a normal human individual who would make mistakes and persevere.
[3] Max Adford wrote "in his first adventure, titled Blood On His Hands, there were suggestions of Ellery Queen’s mentality; and his drawl was rather patterned on that of Philo Vance.
Under certain lights his profile blatantly implicated Lord Peter Wimsey, while his passion for neatness was inherited from Hercule Poirot.