Detective fiction

Detective fiction is a sub-genre of crime fiction and mystery fiction in which an investigator (often a detective), either professional or amateur, investigates a crime, often murder.

In ancient literature
Some scholars have suggested that some ancient and religious texts bear similarities to what would later be called detective fiction. In the Old Testament story of Susanna and the Elders (Daniel 13; in the Protestant Bible this story is found in the apocrypha), the story told by two witnesses breaks down when Daniel cross-examines them. The author Julian Symons has commented on writers who see this as a detective story, arguing that "those who search for fragments of detection in the Bible and Herodotus are looking only for puzzles" and that these puzzles are not detective stories. In the play Oedipus Rex by Ancient Greek playwright Sophocles, the title character discovers the truth about his origins after questioning various witnesses. Although "Oedipus's enquiry is based on supernatural, pre-rational methods that are evident in most narratives of crime until the development of Enlightenment thought in the seventeenth and eighteenth centuries" it has "all of the central characteristics and formal elements of the detective story, including a mystery sur- rounding a murder, a closed circle of suspects, and the gradual uncovering of a hidden past."

Early Arab detective fiction
The earliest known example of a detective story was The Three Apples, one of the tales narrated by Scheherazade in the One Thousand and One Nights (Arabian Nights). In this tale, a fisherman discovers a heavy locked chest along the Tigris river and he sells it to the Abbasid Caliph, Harun al-Rashid, who then has the chest broken open only to find inside it the dead body of a young woman who was cut into pieces. Harun orders his vizier, Ja'far ibn Yahya, to solve the crime and find the murderer within three days or be executed if he fails his assignment. Suspense is generated through multiple plot twists that occur as the story progresses. This may thus be considered an archetype for detective fiction.

The main difference between Ja'far in "The Three Apples" and later fictional detectives such as Sherlock Holmes and Hercule Poirot, however, is that Ja'far has no actual desire to solve the case. The whodunit mystery is solved when the murderer himself confesses his crime, which in turn leads to another assignment in which Ja'far has to find the culprit who instigated the murder within three days or else be executed. Ja'far again fails to find the culprit before the deadline, but owing to his chance discovery of a key item, he eventually manages to solve the case through reasoning, in order to prevent his own execution.

Early Chinese detective fiction
The "Gong An story" （公案小说, literally："case records of a public law court"）is the earliest known genre of Chinese detective fiction.

Some well known stories include the Yuan Dynasty story Circle of Chalk (Chinese:灰闌記), the Ming Dynasty story collection Bao Gong An (Chinese:包公案) and the 18th century Di Gong An (Chinese:狄公案) story collection. The latter was translated into English as Celebrated Cases of Judge Dee by Dutch sinologist Robert Van Gulik, who then used the style and characters to write an original Judge Dee series.

The hero/detective of these novels is typically a traditional judge or similar official based on historical personages such as Judge Bao (Bao Qingtian) or Judge Dee (Di Renjie). Although the historical characters may have lived in an earlier period (such as the Song or Tang dynasty) most stories are written in the latter Ming or Qing period.

These novels differ from the Western tradition in several points as described by van Gulik:
 * the detective is the local magistrate who is usually involved in several unrelated cases simultaneously;
 * the criminal is introduced at the very start of the story and his crime and reasons are carefully explained, thus constituting an inverted detective story rather than a "puzzle";
 * the stories have a supernatural element with ghosts telling people about their death and even accusing the criminal;
 * the stories are filled with digressions into philosophy, the complete texts of official documents, and much more, making for very long books;
 * the novels tend to have a huge cast of characters, typically in the hundreds, all described as to their relation to the various main actors in the story.

Van Gulik chose Di Gong An to translate because it was in his view closer to the Western tradition and more likely to appeal to non-Chinese readers.

One notable fact is that a number of Gong An works may have been lost or destroyed during the Literary Inquisitions and the wars in ancient China. Only little or incomplete case volumes can be found; for example, the only copy of Di Gong An was found at a second-hand book store in Tokyo, Japan.

Early Western detective fiction
One of the earliest examples of detective fiction is Voltaire's Zadig (1748), which features a main character who performs feats of analysis. The Danish crime story The Rector of Veilbye by Steen Steensen Blicher was written in 1829, and the Norwegian crime novel Mordet på Maskinbygger Rolfsen ("The Murder of Engine Maker Rolfsen") by Maurits Hansen was published in 1839.

"Das Fräulein von Scuderi", an 1819 short story by E. T. A. Hoffmann, in which Mlle de Scudery establishes the innocence of the police's favorite suspect in the murder of a jeweller, is sometimes cited as the first detective story and a direct influence on Edgar Allan Poe's "The Murders in the Rue Morgue". Also suggested as a possible influence on Poe is ‘The Secret Cell’, a short story published in September 1837 by William Evans Burton, describing how a London policeman solves the mystery of a kidnapped girl. Burton’s fictional detective relies on practical methods - dogged legwork, knowledge of the underworld and undercover surveillance - rather than brilliance of imagination or intellect, but it has been suggested this story may have been known to Poe, who in 1839 worked for Burton. However, true detective fiction is more often considered in the English-speaking world to have begun in 1841 with the publication of "The Murders in the Rue Morgue" itself, featuring "the first fictional detective, the eccentric and brilliant C. Auguste Dupin". Poe devised a "plot formula that's been successful ever since, give or take a few shifting variables." Poe followed with further Auguste Dupin tales: "The Mystery of Marie Rogêt" in 1843 and "The Purloined Letter" in 1845.

Poe referred to his stories as "tales of ratiocination". In stories such as these, the primary concern of the plot is ascertaining truth, and the usual means of obtaining the truth is a complex and mysterious process combining intuitive logic, astute observation, and perspicacious inference. "Early detective stories tended to follow an investigating protagonist from the first scene to the last, making the unraveling a practical rather than emotional matter." "The Mystery of Marie Rogêt" is particularly interesting because it is a barely fictionalized account based on Poe's theory of what happened to the real-life Mary Cecilia Rogers.

Émile Gaboriau was a pioneer of the detective fiction genre in France. In Monsieur Lecoq (1868), the title character is adept at disguise, a key characteristic of detectives. Gaboriau's writing is also considered to contain the first example of a detective minutely examining a crime scene for clues.

Another early example of a whodunit is a subplot in the novel Bleak House (1853) by Charles Dickens. The conniving lawyer Tulkinghorn is killed in his office late one night, and the crime is investigated by Inspector Bucket of the Metropolitan police force. Numerous characters appeared on the staircase leading to Tulkinghorn's office that night, some of them in disguise, and Inspector Bucket must penetrate these mysteries to identify the murderer. Dickens's protégé, Wilkie Collins (1824–1889)&mdash;sometimes referred to as the "grandfather of English detective fiction"&mdash;is credited with the first great mystery novel, The Woman in White. T. S. Eliot called Collins's novel The Moonstone (1868) "the first, the longest, and the best of modern English detective novels... in a genre invented by Collins and not by Poe", and Dorothy L. Sayers called it "probably the very finest detective story ever written". The Moonstone contains a number of ideas that have established in the genre several classic features of the 20th century detective story:


 * English country house robbery
 * An "inside job"
 * red herrings
 * A celebrated, skilled, professional investigator
 * Bungling local constabulary
 * Detective inquiries
 * Large number of false suspects
 * The "least likely suspect"
 * A rudimentary "locked room" murder
 * A reconstruction of the crime
 * A final twist in the plot



Although The Moonstone is usually seen as the first detective novel, a number of critics suggest that the lesser known Notting Hill Mystery (1862–63), written by the pseudonymous "Charles Felix", preceded it by a number of years and first used techniques that would come to define the genre. In 1952, William Buckler identified the author of the novel as Charles Warren Adams and in 2011 American investigator Paul Collins found a number of lines of evidence that confirmed Buckler's initial claim.

In 1887, Arthur Conan Doyle created Sherlock Holmes, the most famous of all fictional detectives. Although Sherlock Holmes is not the original fiction detective (he was influenced by Poe's Dupin and Gaboriau's Lecoq), his name has become a byword for the part. Conan Doyle stated that the character of Holmes was inspired by Dr. Joseph Bell, for whom Doyle had worked as a clerk at the Edinburgh Royal Infirmary. Like Holmes, Bell was noted for drawing large conclusions from the smallest observations. A brilliant London-based "consulting detective" residing at 221B Baker Street, Holmes is famous for his intellectual prowess and is renowned for his skillful use of astute observation, deductive reasoning, and forensic skills to solve difficult cases. Conan Doyle wrote four novels and fifty-six short stories featuring Holmes, and all but four stories are narrated by Holmes's friend, assistant, and biographer, Dr. John H. Watson.

Golden Age detective novels
The period of the 1920s and 1930s is generally referred to as the Golden Age of Detective Fiction. During this period, a number of very popular writers emerged, mostly British but with a notable subset of American writers. Female writers constituted a major portion of notable Golden Age writers, including Agatha Christie, the most famous of the Golden Age writers, and among the most famous authors of any genre, of all time. Four female writers of the Golden Age are considered the four original "Queens of Crime": Christie, Dorothy L. Sayers, Ngaio Marsh and Margery Allingham. Apart from Ngaio Marsh (New Zealand born) they were all British.

Various conventions of the detective genre were standardized during the Golden Age, and in 1929 some of them were codified by writer Ronald Knox in his 'Decalogue' of rules for detective fiction, among them to avoid supernatural elements, all of which were meant to guarantee that, in Knox's words, a detective story "must have as its main interest the unravelling of a mystery; a mystery whose elements are clearly presented to the reader at an early stage in the proceedings, and whose nature is such as to arouse curiosity, a curiosity which is gratified at the end." In Golden Age detective stories, an outsider — sometimes a salaried investigator or a police officer, but often a gifted amateur — investigates a murder committed in a closed environment by one of a limited number of suspects.

The most widespread subgenre of the detective novel became the whodunit (or whodunnit, short for "who done it?"), where great ingenuity may be exercised in narrating the events of the crime, usually a homicide, and of the subsequent investigation in such a manner as to conceal the identity of the criminal from the reader until the end of the book, when the method and culprit are revealed. According to scholars Carole Kismaric and Marvi Heiferman, "The golden age of detective fiction began with high-class amateur detectives sniffing out murderers lurking in rose gardens, down country lanes, and in picturesque villages. Many conventions of the detective-fiction genre evolved in this era, as numerous writers — from populist entertainers to respected poets — tried their hands at mystery stories."

Many of the most popular books of the Golden Age were written by Agatha Christie, who produced a long series of books featuring her detectives Hercule Poirot and Miss Marple, amongst others, and usually including a complex puzzle for the reader to try to unravel. Christie's novels include, Murder on the Orient Express (1934), Death on the Nile (1937), and And Then There Were None (1939). Also popular were the stories featuring Dorothy L. Sayers's Lord Peter Wimsey and S. S. Van Dine's Philo Vance.

The "puzzle" approach was carried even further into ingenious and seemingly impossible plots by John Dickson Carr — also writing as Carter Dickson — who is regarded as the master of the "locked room mystery", and Cecil Street, who also wrote as John Rhode, whose detective, Dr. Priestley, specialised in elaborate technical devices, while in the US the whodunnit was adopted and extended by Rex Stout and Ellery Queen, among others. The emphasis on formal rules during the Golden Age produced a variety of reactions. Most writers were content to follow the rules slavishly, some flouted some or all of the conventions, and some exploited the conventions to produce new and startling results.

The private eye novel
Martin Hewitt, created by British author Arthur Morrison in 1894, is perhaps the first example of the modern style of fictional private detective.

By the late 1920s, Al Capone and the Mob were inspiring not only fear, but piquing mainstream curiosity about the American underworld. Popular pulp fiction magazines like Black Mask capitalized on this, as authors such as Carrol John Daly published violent stories that focused on the mayhem and injustice surrounding the criminals, not the circumstances behind the crime. From within this literary environment emerged many stories and novels about private detectives, also known as private investigators, PIs and "private eyes" ("eye" being the vocalization of "I" for "investigator"). Very often, no actual mystery even existed: the books simply revolved around justice being served to those who deserved harsh treatment, which was described in explicit detail."

In the 1930s, the private eye genre was adopted wholeheartedly by American writers. The tough, stylish detective fiction of Dashiell Hammett, Jonathan Latimer, Erle Stanley Gardner and others explored the "mean streets" and corrupt underbelly of the United States. Their style of crime fiction came to be known as "hardboiled", which encompasses stories with similar attitudes concentrating not on detectives but gangsters, crooks, and other committers or victims of crimes. "Told in stark and sometimes elegant language through the unemotional eyes of new hero-detectives, these stories were an American phenomenon."

In the late 1930s, Raymond Chandler updated the form with his private detective Philip Marlowe, who brought a more intimate voice to the detective than the more distanced, "operatives report" style of Hammett's Continental Op stories. Despite struggling through the task of plotting a story, his cadenced dialogue and cryptic narrations were musical, evoking the dark alleys and tough thugs, rich women and powerful men about whom he wrote. Several feature and television movies have been made about the Philip Marlowe character. James Hadley Chase wrote a few novels with private eyes as the main hero, including Blonde's Requiem (1945), Lay Her Among the Lilies (1950), and Figure It Out for Yourself (1950). Heroes of these novels are typical private eyes very similar to Philip Marlowe.

Ross Macdonald, pseudonym of Kenneth Millar, updated the form again with his detective Lew Archer. Archer, like Hammett's fictional heroes, was a camera eye, with hardly any known past. "Turn Archer sideways, and he disappears," one reviewer wrote. Two of Macdonald's strengths were his use of psychology and his beautiful prose, which was full of imagery. Like other 'hardboiled' writers, Macdonald aimed to give an impression of realism in his work through violence, sex and confrontation; this is illusory, however, and any real private eye undergoing a typical fictional investigation would soon be dead or incapacitated. The 1966 movie Harper starring Paul Newman was based on the first Lew Archer story The Moving Target (1949). Newman reprised the role in The Drowning Pool in 1976.

Michael Collins, pseudonym of Dennis Lynds, is generally considered the author who led the form into the Modern Age. His PI, Dan Fortune, was consistently involved in the same sort of David-and-Goliath stories that Hammett, Chandler, and Macdonald wrote, but Collins took a sociological bent, exploring the meaning of his characters' places in society and the impact society had on people. Full of commentary and clipped prose, his books were more intimate than those of his predecessors, dramatizing that crime can happen in one's own living room.

The PI novel was a male-dominated field in which female authors seldom found publication until Marcia Muller, Sara Paretsky, and Sue Grafton were finally published in the late 1970s and early 1980s. Each author's detective, also female, was brainy and physical and could hold her own. Their acceptance, and success, caused publishers to seek out other female authors.

The "whodunit" versus the "inverted detective story"
A majority of detective stories follow the "whodunit" format. The events of the crime and the subsequent events of the investigation are presented so that the reader is only provided clues from which the identity of the perpetrator of the crime may be deduced. The solution is not revealed until the final pages of the book.

In an inverted detective story, the commission of the crime, and usually also the identity of the perpetrator, is shown or described at the beginning. The remainder of the story then describes the subsequent investigation. Instead, the "puzzle" presented to the reader is discovering the clues and evidence that the perpetrator left behind.

Police procedural
Many detective stories have police officers as the main characters. Of course these stories may take a variety of forms, but many authors try to realistically depict the routine activities of a group of police officers who are frequently working on more than one case simultaneously. Some of these stories are whodunits; in others the criminal is well known, and it is a case of getting enough evidence.

Other subgenres
There is also a subgenre of historical detectives. See historical whodunnit for an overview.

The first amateur railway detective, Thorpe Hazell, was created by Victor Whitechurch and his stories impressed Ellery Queen and Dorothy L. Sayers.

"Cozy mysteries" began in the late 20th century as a reinvention of the Golden Age whodunnit; these novels generally shy away from violence and suspense and frequently feature female amateur detectives. Modern cozy mysteries are frequently, though not necessarily in either case, humorous and thematic (culinary mystery, animal mystery, quilting mystery, etc.)

Another subgenre of detective fiction is the serial killer mystery, which might be thought of as an outcropping of the police procedural. There are early mystery novels in which a police force attempts to contend with the type of criminal known in the 1920s as a homicidal maniac, such as a few of the early novels of Philip Macdonald and Ellery Queen's Cat of Many Tails. However, this sort of story became much more popular after the coining of the phrase "serial killer" in the 1970s and the publication of The Silence of the Lambs in 1988. These stories frequently show the activities of many members of a police force or government agency in their efforts to apprehend a killer who is selecting victims on some obscure basis. They are also often much more violent and suspenseful than other mysteries.

Preserving the story's secrets
Even if they do not mean to, advertisers, reviewers, scholars and aficionados sometimes give away details or parts of the plot, and sometimes — for example in the case of Mickey Spillane's novel I, the Jury — even the solution. After the credits of Billy Wilder's film Witness for the Prosecution, the cinemagoers are asked not to talk to anyone about the plot so that future viewers will also be able to fully enjoy the unravelling of the mystery.

Plausibility and coincidence
For series involving amateur detectives, their frequent encounters with crime often tests the limits of plausibility. The character Miss Marple, for instance, dealt with an estimated two murders a year; De Andrea has described Marple's home town, the quiet little village of St. Mary Mead as having "put on a pageant of human depravity rivaled only by that of Sodom and Gomorrah". Similarly, TV heroine Jessica Fletcher of Murder, She Wrote is confronted with bodies wherever she goes, but over the years corpses have also piled up in the streets of Cabot Cove, Maine, where she lives. It is arguably more convincing if police, forensic experts or similar professionals are made the protagonist of a series of crime novels.

The television series Monk has often made fun of this implausible frequency. The main character, Adrian Monk, is frequently accused of being a "bad luck charm" and a "murder magnet" as the result of the frequency with which murder happens in his vicinity.

Likewise Kogoro Mori of Detective Conan got that kind of unflattering reputation. Although Mori is actually a private investigator with his own agency, the police never intentionally consult him as he stumbles from one crime scene to another.

The role and legitimacy of coincidence has frequently been the topic of heated arguments ever since Ronald A. Knox categorically stated that "no accident must ever help the detective" (Commandment No. 6 in his "Decalogue").

Effects of technology
Technological progress has also rendered many plots implausible and antiquated. For example, the predominance of mobile phones, pagers, and PDAs has significantly altered the previously dangerous situations in which investigators traditionally might have found themselves. Some authors have not succeeded in adapting to the changes brought about by modern technology; others, such as Carl Hiaasen, have.

One tactic that avoids the issue of technology altogether is the historical detective genre. As global interconnectedness makes legitimate suspense more difficult to achieve, several writers — including Elizabeth Peters, P. C. Doherty, Steven Saylor, and Lindsey Davis — have eschewed fabricating convoluted plots in order to manufacture tension, instead opting to set their characters in some former period. Such a strategy forces the protagonist to rely on more inventive means of investigation, lacking as they do the technological tools available to modern detectives.

Introduction to regional and ethnic subcultures
Especially in the United States, detective fiction emerged in the 1960s, and gained prominence in later decades, as a way for authors to bring stories about various subcultures to mainstream audiences. One scholar wrote about the detective novels of Tony Hillerman, set among the Native American population around New Mexico, "many American readers have probably gotten more insight into traditional Navajo culture from his detective stories than from any other recent books." Other notable writers who have explored regional and ethnic communities in their detective novels are Harry Kemelman, whose Rabbi Small series were set the Conservative Jewish community of Massachusetts; Walter Mosley, whose Easy Rawlins books are set in the African American community of 1950s Los Angeles; and Sara Paretsky, whose V. I. Warshawski books have explored the various subcultures of Chicago.

Proposed rules
Several authors have attempted to set forth a sort of list of “Detective Commandments” for prospective authors of the genre.

According to "Twenty rules for writing detective stories", by Van Dine in 1928: "The detective story is a kind of intellectual game. It is more — it is a sporting event. And for the writing of detective stories there are very definite laws — unwritten, perhaps, but nonetheless binding; and every respectable and self-respecting concocter of literary mysteries lives up to them. Herewith, then, is a sort of credo, based partly on the practice of all the great writers of detective stories, and partly on the promptings of the honest author's inner conscience." Ronald Knox wrote a set of Ten Commandments or Decalogue in 1929, see article on the Golden Age of Detective Fiction.

Famous fictional detectives
The full list of fictional detectives is immense. The format is well suited to dramatic presentation, and so there are also many television and film detectives, besides those appearing in adaptations of novels in this genre. Fictional detectives are generally applicable to one of four archetypes:
 * the amateur detective (Marple, Jessica Fletcher, Peter Wimsey);
 * the private investigator (Poirot, Dupin, Holmes, Marlowe, Cross, Spade, Poirot, Magnum, Simon & Simon);
 * the police detective (Dalgliesh, Kojak, Morse, Frost, Barnaby, Clouseau, Columbo);
 * the forensic specialists (Scarpetta, Quincy, Cracker, CSI, John Thorndyke).

Notable fictional detectives and their creators include:

Great detectives (non-private)
 * Jonathan Ames - Bored to Death
 * Sexton Blake - many including Hal Meredeth, John Creasey, Jack Trevor Story and Michael Moorcock
 * Encyclopedia Brown – Donald J. Sobol
 * Father Brown – G. K. Chesterton
 * Amelia Butterworth - Anna Katharine Green
 * Max Carrados – Ernest Bramah
 * Lord Edward Corinth - David Roberts
 * Jonathan Creek – Jonathan Creek
 * Alex Delaware – Jonathan Kellerman
 * Nancy Drew – Carolyn Keene
 * Bulldog Drummond – Sapper
 * C. Auguste Dupin – Edgar Allan Poe
 * Erast Fandorin – Boris Akunin
 * Gideon Fell – John Dickson Carr
 * Jessica Fletcher – Created by William Link and Richard Levinson for Murder, She Wrote (TV 1984-96)
 * The Hardy Boys – Franklin W. Dixon
 * Thorpe Hazell – Victor Whitechurch
 * Shinichi Kudo – Gosho Aoyama
 * Yusaku Kudo - Gosho Aoyama
 * Hattori Heiji - Gosho Aoyama
 * Patrick Jane - Created by Bruno Heller for The Mentalist TV series (2008- )
 * L Lawliet - Tsugumi Ohba and Takeshi Obata
 * Miss Marple – Agatha Christie
 * Perry Mason – Erle Stanley Gardner
 * Travis McGee – John D. MacDonald
 * Dr. Lancelot Priestly – John Rhode
 * Ellery Queen – Ellery Queen
 * Tom Swift - Victor Appleton
 * Violet Strange - Anna Katharine Green
 * Dr. John Thorndyke – R. Austin Freeman
 * Philip Trent - Edmund Clerihew Bentley
 * Professor Augustus S. F. X. Van Dusen - Jacques Futrelle
 * Lord Peter Wimsey – Dorothy L. Sayers

Private Investigators
 * Angelus/Angel – Created by Joss Whedon for Angel (TV series) (1999-2004)
 * Lew Archer – Ross Macdonald
 * Byomkesh Bakshi – Sharadindu Bandyopadhyay
 * Trueman Bradley – Alexei Maxim Russell
 * Vincent Calvino – Christopher G. Moore
 * Elvis Cole – Robert Crais
 * The Continental Op – Dashiell Hammett
 * Carland Cross – Created by Michel Oleffe and Olivier Grenson for the animated Carland Cross (TV series) (1996)
 * Tim Diamond – Anthony Horowitz
 * Feluda – Satyajit Ray
 * Dirk Gently - Douglas Adams
 * Colonel Wyckham Gore - Lynn Brock
 * Cordelia Gray - P.D. James
 * Mike Hammer – Mickey Spillane
 * Sherlock Holmes – Sir Arthur Conan Doyle
 * Laura Holt – Created by Robert Butler and Michael Gleason for Remington Steele TV series (1982–87)
 * Thomas Magnum – Created by Donald P. Bellisario and Glen A. Larson for Magnum, P.I. TV series (1980–88)
 * Philip Marlowe – Raymond Chandler
 * Kinsey Millhone- Sue Grafton
 * Adrian Monk – Created by Andy Breckman for Monk (TV series) (2002–09)
 * Richard Moore - Gosho Aoyama
 * Charlie Parker - John Connolly
 * Hercule Poirot – Agatha Christie
 * Solar Pons - August Derleth
 * Easy Rawlins – Walter Mosley
 * Jim Rockford ­­– Created by Roy Huggins and Stephen J. Cannell for The Rockford Files TV series (1974–80)
 * Michael Shayne – Brett Halliday
 * Miss Silver – Patricia Wentworth
 * A.J. and Rick Simon - Created by Philip DeGuere for Simon & Simon TV series (1981–89)
 * Sam Spade – Dashiell Hammett
 * Shawn Spencer – Created by Steve Franks for Psych (TV series) (2006- )
 * Spenser – Robert B. Parker
 * John Taylor - Simon R. Green
 * Amos Walker - Loren D. Estleman
 * V.I. Warshawski - Sara Paretsky
 * Nero Wolfe – Rex Stout
 * Precious Ramotswe – Alexander McCall Smith

Police detectives
 * 87th Precinct detectives - Ed McBain
 * Roderick Alleyn – Ngaio Marsh
 * Inspector Alan Banks – Peter Robinson
 * Tom Barnaby – Caroline Graham
 * Martin Beck – Maj Sjöwall and Per Wahlöö
 * Detective Kate Beckett – Andrew W. Marlowe
 * Detective Mick Belker - Hill Street Blues
 * Harry Bosch – Michael Connelly
 * Detective Lennie Briscoe – Dick Wolf
 * Charlie Chan – Earl Derr Biggers
 * Inspector Clouseau – Pink Panther
 * Columbo – Created by William Link and Richard Levinson
 * Sergeant Cuff - Wilkie Collins, The Moonstone
 * Sonny Crockett – Miami Vice
 * Adam Dalgliesh – P. D. James
 * Peter Diamond - Peter Lovesey
 * Kurt Wallander – Henning Mankell* Colonel Faridi - Ibn-e-Safi
 * DCS Christopher Foyle – Foyle's War
 * Inspector French – Freeman Wills Crofts
 * Joe Friday
 * George Gideon – John Creasey
 * Det. Bobby Goren – Law & Order: Criminal Intent
 * Ebenezer Gryce - Anna Katharine Green
 * Captain Hameed - Ibn-e-Safi
 * Det. Alexandra Eames – Law & Order: Criminal Intent
 * Det. Elliot Stabler – Law & Order: Special Victims Unit
 * Det. Olivia Benson – Law & Order: Special Victims Unit
 * Det. Fin Tutuola – Law & Order: Special Victims Unit
 * Det. John Munch – Homicide: Life on the Street & Law & Order: Special Victims Unit
 * Nick Amaro – Law & Order: Special Victims Unit
 * Amanda Rollins – Law & Order: Special Victims Unit
 * Adjutant Detective Henk Grijpstra and Detective Sergeant Rinus de Gier - Janwillem van de Wetering
 * Chief Inspector Heat - Joseph Conrad, The Secret Agent
 * Chief Inspector Japp – Agatha Christie
 * Inspector Javert - Victor Hugo
 * Lt. Theo Kojak – Kojak (played by Telly Savalas)
 * Inspector Lestrade – Sir Arthur Conan Doyle
 * Inspector Karl Lohmann – Fritz Lang
 * Sarah Lund - The Killing
 * Thomas Lynley – The Inspector Lynley Mysteries
 * Vic Mackey – The Shield
 * Jules Maigret – Georges Simenon
 * Inspector Montalbano – Andrea Camilleri
 * Inspector Morse – Colin Dexter
 * Frank Pembleton - Homicide: Life on the Street
 * Cole Phelps - L.A. Noire
 * Inspector Rebus – Ian Rankin
 * Jackie Reid - Created by Glenn Chandler for the Taggart TV series (1983-2010)
 * Arkady Renko - Martin Cruz Smith
 * Charlie Resnick – John Harvey
 * Robbie Ross - Created by Glenn Chandler for the Taggart TV series (1983-2010)
 * Andy Sipowicz - NYPD Blue
 * Jesse Stone – Robert B. Parker
 * Jim Taggart - Created by Glenn Chandler for the Taggart TV series (1983-2010)
 * Jane Tennison – Prime Suspect (UK TV series)
 * Dick Tracy - Chester Gould
 * Commissaris Simon "Piet" van der Valk - Van der Valk
 * Van Veeteren – Håkan Nesser
 * Martin Vrenko – Avgust Demšar

Forensic specialists
 * Temperance Brennan – Bones
 * Eddie "Fitz" Fitzgerald - Cracker
 * Catherine Willows - CSI: Crime Scene Investigation
 * Gil Grissom – CSI: Crime Scene Investigation
 * Raymond Langston – CSI: Crime Scene Investigation
 * Donald "Ducky" Mallard – N.C.I.S.
 * Abby Scuito - N.C.I.S.
 * Quincy – Quincy, M.E.
 * Elizabeth Rodgers – Law & Order
 * Kay Scarpetta – Patricia Cornwell
 * Mac Taylor – CSI: NY
 * Stella Bonasera - CSI: NY
 * Jo Danville - CSI: NY
 * Calleigh Duquesne - CSI: Miami
 * Horatio Caine - CSI: Miami
 * Dr. Thorndyke – R. Austin Freeman

Catholic Church detectives
 * Father Brown – G. K. Chesterton
 * Brother Cadfael – Edith Pargeter
 * Father Frank Dowling - Father Dowling Mysteries
 * Father John Blackwood "Blackie" Ryan – Andrew Greeley
 * William of Baskerville – Umberto Eco

Government agents
 * Alex Cross – James Patterson
 * Agent Dale Cooper – Twin Peaks
 * Fox Mulder and Dana Scully – The X-Files
 * Francis York Morgan - Deadly Premonition
 * Imran/X-2 - Ibn-e-Safi

Others
 * Simon Templar, a.k.a. "The Saint" – Leslie Charteris
 * Batman, a.k.a. Bruce Wayne – Bob Kane & Bill Finger
 * Karel "Carl" Kolchak – Jeffrey Grant Rice
 * L Lawliet – Tsugumi Ohba and Takeshi Obata
 * Ben Matlock – Dean Hargrove
 * Detective Chimp – DC Comics
 * Naoto Shirogane- Persona 4
 * Hershel Layton - Professor Layton series (Nintendo)

For younger readers
 * Trixie Belden
 * The Boxcar Children
 * Inspector Gadget
 * Ginny Gordon
 * The Three Investigators
 * The Happy Hollisters
 * Inspector Rex
 * Roman Mysteries
 * Scooby Doo
 * Hardy Boys

Historical
 * Brother Cadfael – Edith Pargeter
 * Judge Dee – Robert van Gulik
 * Sister Fidelma – Peter Tremayne
 * Gordianus the Finder – Steven Saylor
 * Marcus Didius Falco – Lindsey Davis
 * Li Kao – Barry Hughart

Science-fiction and Fantasy
 * Elijah Baley – Isaac Asimov
 * Dr. Phil D'Amato – Paul Levinson
 * Lord Darcy – Randall Garrett
 * Rick Deckard – Philip K. Dick Do Androids Dream of Electric Sheep?
 * Harry Dresden – Jim Butcher, The Dresden Files
 * Garrett – Glen Cook
 * Dirk Gently – Douglas Adams
 * Gil Hamilton – Larry Niven
 * Takeshi Kovacs – Richard Morgan
 * Thursday Next – Jasper Fforde
 * Sam Vimes – Terry Pratchett
 * Miles Vorkosigan – Lois McMaster Bujold