Michael Bilton - Wicked Beyond Belief. The Hunt for the Yorkshire Ripper (Text Only)

BOREHAM, LESLIE: High Court judge who presided over the trial of Peter Sutcliffe at the Old Bailey in May 1981.

BOYLE, JOHN: Detective inspector Ripper squad, January 1981. Interrogated Peter Sutcliffe after his arrest.

BYFORD, LAWRENCE: Her Majestys Inspector of Constabulary, responsible for the West Yorkshire police area. Conducted review of what went wrong with the Ripper investigation. Reported to Home Secretary in December 1981.

CATLOW, GRANGE: Detective superintendent Manchester CID. Jack Ridgways deputy.

CRAIG, DONALD: Assistant chief constable (crime) West Yorkshire 1975/76 before he retired.

DOMAILLE, JOHN: Detective chief superintendent, senior investigating officer (SIO) on murder of Patricia Atkinson in Bradford, 1977. Head of Special Homicide Investigation Team (Ripper squad) April 1978March 1979.

ELLIS, STANLEY: Dialect expert and senior lecturer at University of Leeds. Advised police on Geordie tape.

EMMENT, LESLIE: Deputy chief constable, Thames Valley police. Member of Byford advisory/review team.

FINLAY, ALF: Detective superintendent, SIO for Jacqueline Hill murder in Leeds, November 1980.

GEE, DAVID: Professor of forensic pathology at Leeds University and Home Office consultant pathologist. Conducted post-mortems on Ripper victims.

GERTY, DAVID: Assistant chief constable, West Midlands police. Member of Byford advisory/review team.

GILRAIN, PETER: Detective chief superintendent, SIO for Barbara Leach murder in Bradford, September 1979.

GREGG, CHRIS: Detective chief superintendent, head of West Yorkshire Police Homicide and Major Enquiry Team (HMET). Launched the hunt for the hoaxer.

GREGORY, RONALD: Chief constable of West Yorkshire.

HARVEY, RONALD: Commander, New Scotland Yard. Special adviser on crime to Home Office. Member of Byford advisory/review team.

HAVERS, SIR MICHAEL: QC, MP. Attorney General. Led prosecution at Sutcliffes trial.

HOBAN, DENNIS: Detective chief superintendent and head of Leeds CID. SIO for first two Ripper murders, Wilma McCann and Emily Jackson, in 1975/76. Died March 1978.

HOBSON, JIM: Detective chief superintendent. Dennis Hobans deputy in Leeds. SIO on inquiry into Irene Richardsons murder. Put in overall charge of the investigation in late November 1980, six weeks before Peter Sutcliffe was arrested.

HOLLAND, DICK: Detective superintendent. Pivotal figure in the Yorkshire Ripper investigation. Drafted in after the murder of Jane MacDonald in 1977 and remained until the killer was arrested.

HYDES, ROBERT: Probationer police constable in Sheffield, South Yorkshire. Arrested Peter Sutcliffe, 2 January 1981.

KIND, STUART: Professor of forensic science, head of Home Office Central Research Establishment at Aldermaston, 1980. Member of Byford advisory/ review team.

LAPISH, TREVOR: Detective chief superintendent, SIO on Yvonne Pearson murder in Bradford, January 1978.

LAPTEW, ANDREW: Detective constable on Ripper squad, July 1979, when he interviewed Peter Sutcliffe and named him as a strong suspect.

LEWIS, JACK WINDSOR: Linguistic expert and lecturer at University of Leeds who advised police on tape and letters.

MILNE, HUGO: Psychiatrist who examined Peter Sutcliffe and gave evidence for the defence at his trial.

OBOYLE, DES FINBARR: Detective sergeant, Ripper squad, January 1981. Interrogated Peter Sutcliffe after his arrest.

OLDFIELD, GEORGE: Assistant chief constable (crime) West Yorkshire police. Ran the Yorkshire Ripper investigation 197780.

OGNALL, HARRY: QC. Senior member of the prosecution team at Sutcliffes trial.

OUTTERIDGE, RON: Forensic scientist. Spent two months with Russell Stockdale advising Ripper squad in 1979.

RIDGWAY, JACK: Detective chief superintendent. SIO on murders of Jean Jordan and Vera Millward in Manchester in 1977/78. Ran five-pound note inquiry.

RING, ROBERT: Police sergeant in Sheffield, South Yorkshire. Arrested Peter Sutcliffe, 2 January 1981.

SHAW, GRAHAM: Detective Superintendent, S10 West Yorkshire Police. Led police arrest team in Sunderland in hoaxer case.

SLOAN, ANDREW: National Coordinator of Regional Crime Squads in 1980. Member of Byford advisory/review team.

SMITH, PETER: Detective sergeant, Ripper squad, January 1981. Interrogated Peter Sutcliffe after his arrest and took his confession.

SMITH, STUART: Detective Sergeant, West Yorkshire Police. Conducted interviews with John Samuel Humble.

STOCKDALE, RUSSELL: Forensic scientist on several Ripper murders. Spent two months with Ron Outteridge advising Ripper squad in 1979.

SUMMERSKILL, SHIRLEY: MP and former Home Office minister who vetoed a public inquiry into the Black Panther case in 1976 and argued that the police had learned lessons from any errors made.

SUTCLIFFE, SONIA: Peter Sutcliffes wife. They married in 1974 and divorced some time after his arrest.

THATCHER, MARGARET: Prime Minister in 1980 at the time of the killing of the Yorkshire Rippers final victim in November 1980. Ordered William Whitelaw to beef up the Ripper investigation.

WHITELAW, WILLIAM: Home Secretary, 1979/80.

ZACKRISSON, DAVID: Detective inspector in Northumbria police. Wrote report in 1979 warning the Geordie tape was an elaborate hoax.

1969

30 SEPTEMBER: Bradford, West Yorkshire. Peter Sutcliffe arrested in the red-light area and charged with going equipped for theft with a hammer.

1975

5 JULY: Keighley, West Yorkshire. Anna Rogulskyj attacked. Senior investigating officer (SIO): Detective Superintendent P. J. Perry.

15 AUGUST: Halifax, West Yorkshire. Olive Smelt attacked. SIO: Detective Chief Inspector Dick Holland.

28 AUGUST: Silsden, near Keighley. Tracey Browne attacked. SIO: Detective Superintendent Jim Hobson. Unacknowledged Ripper attack.

30 OCTOBER: Leeds, West Yorkshire. Wilma McCann murdered a hundred yards from her home. SIO: Detective Chief Superintendent Dennis Hoban.

20 NOVEMBER: Preston, Lancashire. Joan Harrison murdered. SIO: Detective Chief Superintendent Wilf Brooks, Lancashire CID.

1976

20 JANUARY: Leeds. Emily Jackson murdered. SIO: Detective Chief Superintendent Dennis Hoban.

9 MAY: Leeds. Marcella Claxton attacked at Roundhay Park. SIO: Detective Chief Superintendent Jim Hobson. Unacknowledged Ripper attack.

1977

5 FEBRUARY: Leeds. Irene Richardson murdered in Roundhay Park. SIO: Detective Chief Superintendent Jim Hobson.

23 APRIL: Bradford. Patricia Atkinson murdered in her flat. SIO: Detective Chief Superintendent John Domaille.

26 JUNE: Leeds. Jayne MacDonald murdered. SIO: Assistant Chief Constable (ACC) (Crime) George Oldfield.

10 JULY: Bradford. Maureen Long attacked. SIO: ACC (Crime) George Oldfield.

1 OCTOBER: Manchester. Jean Jordan murdered. SIO: Detective Chief Superintendent Jack Ridgway, Manchester CID.

14 DECEMBER: Leeds. Marilyn Moore attacked. SIO: Detective Chief Superintendent Jim Hobson.

1978

21 JANUARY: Bradford. Yvonne Pearson murdered. SIO: Detective Chief Superintendent Trevor Lapish.

31 JANUARY: Huddersfield, West Yorkshire. Helen Rytka murdered. SIO: ACC (Crime) George Oldfield.

25 APRIL: Special Homicide Investigation Team (Ripper squad) set up at Millgarth police station, Leeds, under Detective Chief Superintendent John Domaille, with Detective Superintendent Jack Slater as his deputy, plus ten other detectives.

16 MAY: Manchester. Vera Millward murdered. SIO: Detective Chief Superintendent Jack Ridgway.

1979

MARCH: Detective Superintendent Dick Holland takes over Ripper squad at Millgarth; also in charge of the centralized incident room.