Japp is an Inspector from Scotland Yard and appears in many of the stories trying to solve the cases Poirot is working on.

The absence of their characters ( Hastings, Inspector Japp, and Miss Lemon ) is consistent with the books on which the scripts were based.

In this adaptation Japp — not Sheppard — is Poirot's assistant, leaving Sheppard as just another suspect.

Poirot is also aided by his friends Hastings and Japp, while an Inspector Crome and a Dr. Thompson are also roped in.

Detective Chief Inspector James Harold Japp is a fictional character who appears in several of Agatha Christie's novels featuring Hercule Poirot.

Inspector Japp is also briefly mentioned in the Tommy and Tuppence book The Secret Adversary ; his card is brought to Julius Hersheimmer at the end of chapter five.

In most of these appearances, Japp is a minor character with minimal interactions with Poirot or involvement in the plot.

In number of appearances, Japp is comparable to Arthur Hastings who was featured in eight of the Poirot novels.

James Japp, while being a competent detective, is no match for Poirot ; he frequently finds himself a step behind the great detective but has developed a grudging respect for the man's abilities over their years together.

Japp and Hastings are also generally astonished to find that Poirot cannot understand anything typically English ( like cricket, which he maintains is utter nonsense ).

The role of Japp is played by Philip Jackson in the British TV series Agatha Christie's Poirot, where Hercule Poirot's character is played by David Suchet.

The portrayal of Philip Jackson is considered to be one of the best and most popular portrayals of Japp till date.

Jackson portrays Japp as working-class and ' thoroughly British ', not very intelligent but an extremely diligent and active police officer with a good but rather dry sense of humour, characteristics which often serve as a perfect foil to Poirot's personality, who is intelligent, elegant, upper-class but rather slow in movements and of a very serious nature.

Another method to synthesis a hydrazone is the Japp – Klingemann reaction ( from β-keto-acids or β-keto-esters and aryl diazonium salts )

Meditation on the Name produces Wismad, wonder ; and the object of such poetry as the Japp Sahib is the creation of the mood of aesthetic ecstasy: Sher Singh in the Philosophy of Sikhism writes:

Japp suspects he was poisoned, and Poirot is called in.

The Reaction is named after the chemists Francis Robert Japp and Felix Klingemann.

Chief Constable Colonel Johnson, who features in the novel, is replaced in the television adaptation by regular Poirot character Chief Inspector Japp.

This adaptation also differed from Christie's original in that Sharpe is replaced with the recurring character of Inspector Japp, and a number of the students from the novel are left out, most notably both ethnic minority characters, Akibombo and Lal.

Japp also confirms Havering's alibi for his train times to London and his attendance at the club but soon the missing pistol is found dumped in Ealing.

In Agatha Christie's Poirot, Japp was portrayed by Philip Jackson.

In the film, Thirteen at Dinner ( 1985 ), adapted from Lord Edgware Dies, the role of Japp was taken by the actor David Suchet, who would later star as Poirot in the ITV adaptations.

Like those of Miss Lemon and Arthur Hastings, the role of Inspector Japp in Poirot's career has been exaggerated by adaptations of Christie's original novels ; specifically by the TV series Agatha Christie's Poirot, where these characters are often introduced into stories that did not originally feature them.

After the departure of Campbell, Pat Fairley then left the band to run the group's music publishing company. Nicholson left in 1973 to form Blue ( not to be confused with a much later boy band of the same name – Blue ), and Ford plus Knight carried on with Marmalade Nicholson was replaced by Mike Japp, a rock guitarist from the Welsh band ' Thank You '.

As with many of the early Poirot adaptations, the characters of Hastings, Inspector Japp and Miss Lemon had a bigger role in the episode than their roles in the book, with Hastings joining Poirot in the resort, Japp investigating the murder ( a role performed by Colonel Weston in the book ) and Lemon investigating Alice Corrigan's murder.

In The ABC Murders, Inspector Japp says to Poirot: " Shouldn't wonder if you ended by detecting your own death ".

The next day, Poirot tells Hastings that Japp informed him that important American naval plans were stolen from that country by an Italian called by Luigi Valdarno who managed to pass them onto an international spy, Elsa Hardt, before being killed in New York.

Davidson leaps forward and curses Poirot but is quickly arrested by Japp.

Over the next day or so, enquiries are made by Japp into the whereabouts of Rupert Carrington and the Count de la Rochefour at the time of the murder but nothing substantial comes to light.

When Japp next visits, Poirot immediately guesses that the knife used to kill Mrs Carrington has been found by the side of the line after between Weston ( the first stop after Bristol on the Plymouth line ) and Taunton ( the next stop after that ) and that a paper boy who sold items to Mrs Carrington has been interviewed.

Japp is able to tell Poirot something he doesn't know – that one of the jewels has been pawned by a known thief called " Red Narky " who usually works with a woman called Gracie Kidd but he seems to be alone this time.

In An Autobiography Christie admits, " I was still writing in the Sherlock Holmes tradition – eccentric detective, stooge assistant, with a Lestrade-type Scotland Yard detective, Inspector Japp ".

Inspector Japp gives some insight into Poirot's career with the Belgian police when introducing him to a colleague:

Suchet appeared as Inspector Japp in the 1985 film adaptation of Lord Edgware Dies, screen-name Thirteen at Dinner, with Peter Ustinov portraying Poirot.

But might not Inspector Japp be allowed to mellow a little, with the years, beyond the moron stage?

The screenplay followed the book closely with some minor changes and some characters omitted: in the adaptation there was only one archeologist, there was no doctor, Jane was a stewardess and in the end Poirot does not match Jane with young archeologist as mentioned in the novel and some other minor changes ( such as in the TV adaptation, Poirot takes Japp to Paris, whereas in the book he takes the French Surete detective and also in the book most of the characters have come from Le Pinet where they have been enjoying some time at the casino, whereas in the adaptation the characters have been at a tennis match in Paris.

Japp and Hastings often commiserate on their confusion and inability to keep up with Poirot on cases.

Philip Jackson also plays Japp alongside John Moffat's Poirot in an ongoing series of BBC Radio adaptations, produced contemporaneously with the Suchet TV series.

Songwriter and musician Mikel Japp, who co-wrote three songs on Paul Stanley's 1978 solo album, co-wrote " Down on Your Knees " with Stanley and Bryan Adams.

Poirot goes over the channel with various detectives involved in the case, among them Japp.

Boasting, Poirot makes a five pound bet with Japp that he could solve the case within a week without moving from his chair.

Poirot is interested in the fact that the house has a boating lake, which Japp tells him is being searched tomorrow, and that Mr. Davenheim wears his hair rather long with a moustache and bushy beard.

The next day Japp returns with the news that Davenheim's clothes have been found in the lake and that they have arrested Lowen.