Liza Cody: Bad Company (UK 1991)
From the Publisher:
The second novel featuring private detective Anna Lee, first encountered in »Dupe«, which won the 1980 John Creasy Award. When she is abducted by a motorcycle gang, her colleagues discover that the incident is linked to a major gangland murder in London, and further bloodshed is feared...
Liza Cody: Bad Company. An Anna Lee Mystery. Arrow, ISBN: 0099821206 (February, 1991), 212 p., £3.99.