The General's Daughter by Nelson DeMille

Here is an intriguing and sophisticated murder mystery of an upstanding military officer - the base commander's daughter - who's been leading an unsavory double life.

When a professional military woman with a pristine reputation is found raped and murdered, a preliminary search turns up certain paraphernalia, and sex toys that point to a scandal of major proportions, The chief investigator is reluctant to take the case when he learns that his partner will be a woman with whom he had a tempestuous affair and an unpleasant parting. But duty calls and intrigue begins when they learn that several top-level people may have been involved with the "golden girl" - and many have wanted her dead.