They fall far short of the standards expected of a DCI at the relevant time, or any time in my experience.
The operation was under the control of DCI Townshend and DI Bungay of the Kent Police Force.
Scotland Yard in 1991 is still very much a boys' club, and Tennison is the first female DCI ever to take on a murder case.
DCI Crofts managed his investigators in a very hands-on way.
As Sam focuses on the case it seems that the biggest obstacle standing between him and success is his new DCI and his very different attitude to policing.
When a woman dies mysteriously in Bradfield Hospital, DCI Jordan orders a postmortem against the wishes of the doctors.
DCI Jane Tennison is searching a house looking for the sister of a murder victim.
Sam's dogged pursuit of evidence brings him head to head with his DCI, Gene Hunt, who has a more flexible approach to the pursuit of justice.
A series of brutal murders lead DCI Jordan to suspect a powerful gang boss who is already in prison.
DCI Sam Tyler's world is about to be turned upside down.