Irvin R. Irving is the husband of Connie Irving, the father of George Irving, a Los Angeles city councilman, and a former Deputy Chief and Assistant Chief with the Los Angeles Police Department. He joined the LAPD in 1955, and considers himself to be "a slow-moving, careful policeman" who does "not like shortcuts" and refuses to be spoken to with abbreviations (detesting, for instance, the use of the shorthand "FBI" in place of the Federal Bureau of Investigation).
He is physically distinctive with a shaved head and protruding jaw muscles that he intentionally clenches and flexes to intimidate others. This is hard on his teeth, necessitating new molar implants every 18 months. His ambitious, aggressive personality matches his intimidating appearance, and he does everything he can to promote the image of himself as a junkyard dog. All of this may be, in part, to overcome his somewhat silly name.
In 1990, as Deputy Chief in charge of Internal Affairs, he is involved in disciplining Harry Bosch for his actions in the Dollmaker case, resulting in Bosch being suspended and then reassigned from RHD to the Hollywood Division. In May of 1991, he assigned IAD detectives Pierce Lewis and Don Clarke to investigate Bosch again in connection with the murder of Billy Meadows and the break-in at WestLand National Bank. At the conclusion of that case, Irving decides to keep Bosch at Hollywood under the supervision of Lt. Harvey Pounds.
By December of 1992, he had been promoted to the position of Assistant Chief, and assigned the investigation into the Christmas night death of Narcotics detective Calexico Moore to RHD detective Frankie Sheehan and IAD detective John Chastain, a case that Bosch believed should have been given to him. He gave Bosch the "dirty work" of notifying Moore's next-of-kin, his estranged wife, Sylvia Moore. However, Bosch continued to investigate the case in a freelance manner. On December 29th, Irving attended Moore's funeral and spoke with Bosch about what the detective had uncovered during a trip to Calexico and Mexicali.
In November of 1993, he testified in the wrongful death lawsuit brought by Deborah Church against detective Bosch for the death of her husband in August of 1991. Until this time, Irving was unaware that the murdered prostitute he found in 1961 was Marjorie Lowe. When a new body was discovered matching the m.o. of the Dollmaker, Irving convened a new task force to find the The Follower. At this time he revealed to Bosch that he was, in fact, the RO (Responding Officer) that had found the body of Bosch's mother when he was a beat cop in 1961. Irving also expresses his support for Bosch in the trial.
In 1995 Irving investigates whether Bosch killed Harvey Pounds, since they were known to have frequent disputes. He concludes that Bosch's alibi is valid. Irving's relationship with Bosch is described as having evolved from mutual mistrust to wary mutual respect.
In September of 1996, Irving arranged a meeting between Bosch and federal agents when an undercover agent accused Bosch of planting evidence to frame him for the murder of Anthony Aliso. Later that month, Irving disciplines Bosch (as well as his partners Jerry Edgar and Kizmin Rider) for conducting an unauthorized investigation and for failure to properly search and secure a suspect.
In April of 1999, Irving called Bosch to specially assign his team to the investigation into the murders of housekeeper Catalina Perez and civil rights attorney Howard Elias. Irving wanted the case handled with great sensitivity in order to prevent public unrest. It didn't work out as he planned, and L.A. erupted in rioting again. When a ballistics test appeared to prove that Frank Sheehan was the killer of Elias, Irving decided that Sheehan was guilty, despite evidence indicating the John Chastain was the actual killer.
In January of 2001, he interrogated private investigator Rudy Tafero along with District Attorney Alice Short, Sheriff's detective Jaye Winston, and FBI agent Don Twilley regarding the murder of Edward Gunn and the attempted murder of former FBI profiler Terry McCaleb.
When William J. Bratton was named the new Chief of Police, Irving was moved to the Office of Strategic Planning in the City Hall Annex. When Bosch returned from retirement in 2004, Irving visited Parker Center to deliver a veiled threat to the detective.
On 3 October 2011, Irving used his political power to have Bosch assigned to investigate the death of his son, George Irving, who had fallen seven stories from room #79 of the Chateau Marmont Hotel. He subsequently lost his bid for reelection to the city council.