As a long-time US reader of UK police procedurals, I've seen more references to "The Sweeney" than I can count, but never got to see the show. Looks like now I can read the book, though!
Free on Amazon:
The Sweeney 2: The Manhattan File by Ian Kennedy Martin
Jack Regan is sent to New York on the trail of an international plot involving millions in missing American military hardware. As usual Jack Regan's talent for extreme action means confrontation with the NYPD, the FBI, the CIA and organised crime, and also a mysterious and willing woman.
This is the second of three Sweeney novels published at the time of the original series. The others are: ‘The Sweeney: Regan’, and ‘The Sweeney 3: The Deal of the Century’.
Ian Kennedy Martin is the creator of Thames Television’s enormously popular TV series.