R. D. Wingfield (1928-2007) wrote only six mysteries, all starring Inspector Frost of the Denton Division. He wrote most of them later in his life. They eventually garnered a lot of attention and praise.
The story of how the novels came to be is very interesting. More detail can be found at this Wikipedia article.
Wingfield originally wrote radio dramas which were very successful. Per this obituary in the Guardian, written by Mike Ripley, it was Wingfield's "reputation as a craftsman of mystery stories featuring small-time criminals and multiple plot lines that brought him to the attention of publishers Macmillan." In 1972, Macmillan requested that Wingfield write a book for them, and he submitted Frost at Christmas. They rejected it, but eventually it was published in the 1980's in Canada and the UK. In between, there was a radio play featuring Frost.
These are the dates of publication of the six Frost novels, per Fantastic Fiction:
1. Frost at Christmas (1984)
2. A Touch of Frost (1987)
3. Night Frost (1992)
4. Hard Frost (1995)
5. Winter Frost (1999)
6. A Killing Frost (2008)
The Frost series was adapted in a television series beginning in 1992 and had a long run. I have seen the first three of the TV series and I have read two of the novels, and my take on it is that they really softened up the Frost character for TV. He has most of the characteristics that he has in the books, but a much milder version. According to Wikipedia, Wingfield's view was that the TV Frost was not his Frost. Nothing wrong with that, just something to know when reading the books after watching the TV shows, or vice versa.
The Frost books are police procedurals set in England that show the Denton Division handling multiple crimes over the course of several days. Detective Inspector Jack Frost is not typical in any way. He circumvents routine police work whenever possible. He is unkempt to the point of slovenliness and he is forgetful and a procrastinator. He has no respect for his superiors and doesn't hide it very well. Nevertheless, regardless of all his "weak" areas, at least in the view of his superiors and some co-workers, he usually succeeds in solving crimes.
A Touch of Frost
This the second Frost novel that I have read. From the back of the paperback copy that I read:
Though he's officially on duty, Frost is looking for the nearest opportunity to sneak off to the departmental booze-up celebrating a colleague's retirement. But the normally sleepy town of Denton is not cooperating this cold autumn night, leaving Frost wading in his best suit through a flooded public rest room to investigate a junkie's death. And from there, things start to go seriously downhill...Even with all of Frost's failings as a policeman, he does care about people and can show sensitivity when needed. There is a very moving section where he is informing a policeman's wife that her husband has been killed. From his interactions with members of the community, you can tell that they know his value and respect him, regardless of what his superiors think.
I was commenting on a blog recently and I compared Inspector Frost to Commissaire Adamsberg of the series by Fred Vargas. Both work in unconventional ways and see possibilities of solutions that others don't see. Then I recently saw this review at Mysteries in Paradise where she also compared the way the two detectives work. I will have to go back and give the Commissaire Adamsberg series another try.
Obviously I plan to finish up this series.